Sponges are filter feeders and are usually:_______
a. active predators.
b. sessile or relatively inactive.
c. always herbivorous.
d. squids.
e. snails.

Answers

Answer 1

Answer:

sessile or relatively inactive.

Explanation:

Sponges are the multicellular which contains channels and pores in their bodies to allow the movement of surrounding water in them. They belong to the kingdom Porifera and are one of the earliest forms of multicellular life on earth.

Since the sponges are one of the earliest forms of multicellular organisms on Earth, therefore, they do not move and remain attached to the underwater surface. Therefore they remain inactive and are sessile.

Thus, Option-B is the correct answer.


Related Questions

All of the following fish choices have high levels of the toxin mentioned in the video except for __________.
1. swordfish
2. salmon
3. tilefish, or golden bass
4. shark

Answers

Answer:

Option 2, Salmon

Explanation:

Large fishes such as shark and sword fish have higher level of mercury. This fact can be explained by the concept of bio magnification in which an individual lying at a higher trophic level in a food chain gets accumulated toxin and hence possess the highest amount of toxin in a given food chain. Small fish such as salmon will have the lowest amount of mercury as they lie at the lower level of a food chain and hence possess a small amount of toxin

Pneumocystis jiroveci is a member of the human microbiota that is: a) an obligate parasite. b) an obligate parasite that cannot survive outside the lungs. c) a common member of the human respiratory microbiota. d) actually a protozoan and not a fungus.e) easy to grow in the laboratory.

Answers

Answer:

b) An obligate parasite that cannot survive outside the lungs.

Explanation:

Pneumocystis jirovecii:

This is the fungus which belongs to genus Pneumocystis. Pneumocystis jirovecii is the obligate protozoan extracellular parasite that causes disease known as Pneumocystis pneumonia.

Lifecycle:

Life cycle of any specie which belongs to the genus Pneumocystis is not known. Reason behind this mystery is that its all stages are present in lungs and cannot cultured in the vivo medium. Its direct observation in difficult.

Correct Choice:

b) An obligate parasite that cannot survive outside the lungs.

According to the results of this experiment, germination of tobacco seeds during the first week is:________(a) increased by exposure to light(b) unaffected by light intensity(c) prevented by paper towels(d) accelerated in green-leaved seedlings

Answers

Answer:

a) Increased by exposure of Light

Explanation:

According to the table provided in the full question, Petri dish labelled A was covered for the first week and showed to have the least number of seed growth (i.e 12 germinated seeds). On the other hand Petri Dish B showed to have the highest number of growth for the first week (i.e 20 germinated seeds).

Since Dish A was covered with an opaque cover to block light entry for the first week differentiating it from Dish B ( which was not covered), explaining the reason for the least number of tobacco seeds germinated.

In most cases, to aid proper germination of seeds light exposure is required, hence the key definition in germination "which is the process whereby a seed begins to grow when placed under proper conditions".

According to the results of this experiment, germination of tobacco seeds during the first week is: Increased by exposure of Light.

a)  increased by exposure to light

From the experiment, we can infer that:

According to the table provided in the full question, Petri dish A was covered for the first week and showed to have the least number of seed growth (i.e. 12 germinated seeds). On the other hand Petri Dish B showed to have the highest number of growth for the first week (i.e. 20 germinated seeds). Since, Dish A was covered with an opaque cover to block light entry for the first week differentiating it from Dish B ( which was not covered), explaining the reason for the least number of tobacco seeds germinated. In most cases, to aid proper germination of seeds light exposure is required, hence the key definition in germination "which is the process whereby a seed begins to grow when placed under proper conditions".

Therefore, option a) is correct.

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Zachary is a 17-year-old male who appears boastful, conceited, and arrogant. When someone accuses him of being that way, he flies into a rage. He shows little care for others and is often envious when others are recognized for their achievements. He is also prone to daydreaming and fantasizing about the success that awaits him.

Answers

Answer:The diagnose for Zachary would be Narcissistic Personality Disorder (NPD).

Explanation: This type of disorder is connected with the following behaviors; the person shows little care for others and is often envious when others get reconized for their achivements. People with this type of this disorder are also prone to daydreaming and fantasizing about the success that awaits him.

Answer:

His behavior shows that he is suffering from Narcissistic personality disorder.

Explanation:

Narcissistic Personality Disorder:

It is such a personality disorder in which a person develops traits like that of a narcissist.

The person tends to consider himself or herself most important and always correct.The persons doesn't show care for others and doesn't concern for others.The person wants that everyone should praise him or her and nobody has the right to criticize.

In our case, the 17- year male is showing such personality traits like he is arrogant and boastful and doesn't show care for others.

What in the peripheral nervous system (PNS) brings information to the central nervous system?

Answers

Answer: Sensory nerves

Explanation:

The sensory nerve are the nerves that carries the information from the peripheral nervous system to the central nervous system.

These nerves recognizes the stimuli from the various parts of the body and sends it to the central nervous system of the body.

A motor nerve carries the information from the central nervous system to the peripheral nervous system of the body.

Hence, the correct answer is sensory nerve.

Answer:

Sensory Neurons

Explanation:

Sensory neurons are responsible for bringing in information to the peripheral nervous system (PNS). The information from PNS is then sent to the CNS for processing. Neurons constitute the basic unit of sensory system and are responsible for communicating the information between the systems. After the CNS processes the information, it sends the action signals through the motor neurons to the respective organs.  

Which of the following will likely result if the concentration of electrolytes outside the cell is higher than in the intracellular environment?
A) The cell will be unaffected.
B) The cell will undergo mitosis and divide.
C) The cell will burst.
D) The cell will shrink and dry up.

Answers

The cell will shrink and dry up.

Final answer:

In a hypertonic solution, where the concentration of electrolytes is higher outside the cell than inside, cells will tend to shrink and dehydrate as water moves out to equilibrate solute concentrations.

Explanation:

If the concentration of electrolytes outside the cell is higher than inside the intracellular environment, this indicates the environment is hypertonic. In a hypertonic solution, the solute concentration is greater on the outside than the inside, leading to a net flow of water moving out of the cell. As a result, cells in a hypertonic solution tend to shrink and dehydrate due to the loss of water. This phenomenon is a result of osmosis, where water moves across the cell membrane to equilibrate the solute concentration inside and outside the cell. Consequently, the correct response to the student's question is (D) The cell will shrink and dry up.

Which of the following allows nutrients and other substances to be transported across the cell membrane?a. Carbohydratesb. Proteinc. Fatsd. Glucose

Answers

Answer:

b. Proteins

Explanation:

Several transmembrane proteins serve as transport proteins and move charged, polar and large substances such as ions, amino acids, sugars through membranes. These are the carrier proteins and channel proteins. Each type of transport protein transports a specific type of substance. Carrier proteins bind the ion or molecule and undergo changes in shape. This change moves the molecule across the membrane. Channel proteins form pores through the membrane to allow transport of substances.

For example, aquaporins are transmembrane proteins that allow water to pass through membranes.

A parent brings her child to the ED. She thinks she swallowed a small toy figure. A radiology exam from the nose to the rectum is performed. The foreign body is not located. What CPT® code(s) is/are reported for the radiology services?

Answers

Answer:

The question is lacking in the options. Below are the options to complete the question

a. 70160, 70370, 71010, 74245

b. 43235, 44363

c.76010

d. 70160, 70370, 71010, 43235, 44363

The RIGHT ANSWER IS C

c.76010

Explanation:

To find a foreign body a radiology exam has to be done. In this senerio the foreign body was not found. In the CPT® Index, look for X-ray/Nose to Rectum/Foreign Body. The correct code is 76010

CPT® code(s) reported for the radiology services is 76010.

76010 is the CPT® code for a radiologic examination, which is used for a radiologic examination from the nose to the rectum for the detection of a foreign body.This code is specifically used for cases where the entire alimentary tract needs to be imaged to locate a potential foreign object.The radiology exam involves multiple images taken along the path from the nose to the rectum to ensure no part is missed.The comprehensive nature of this code accounts for the complete examination, making it the appropriate choice for this scenario.

A group of students are reviewing information about antihistamines. The students demonstrate understanding of the information when they identify which agent as a second generation antihistamine?

Answers

Answer:

The correct answer is: loratadine (Claritin)

Explanation:

Histamine is the chemicals that are responsible for the allergic reaction in the body. Antihistamine is the drug that blocks the release of histamine by blocking the histamine receptor.

These drugs are divided into H1 and H2 antihistamine according to the type of receptor it blocks. H1 antihistamine is further divided into 1st generation antihistamine which is having a central effect and 2nd generation antihistamine in which the central effect is less and is used as an antiallergic drug.

Loratadine(Claritin) is commonly used as 2nd generation antihistamine drug therefore the student demonstrates an understanding of the information if they identify loratadine (Claritin) as 2nd generation antihistamine.

American women are far more likely than men to distinguish between colors like teal and turquoise, or magenta and purple. This an example of:

Answers

Answer:color blindness.

Explanation:

This is a sex-linked disordered That is associated with a particular sex cells mostly the X chromosomes of thr father. The father with XY chromosomes is always color blinded because the Y chromosomes is weak and therefore does not carry this allele.The allele is always on the X of the father.

Mothers can be a carrier or Color blinded because of the XX sex chromosomes

Most women inherited the alleles from the color blinded X chromosomes of thier fathers provided the mother is also a carrier for the allele.

Severing a cat's reticular formation from higher brain regions causes the cat to:

Answers

Answer:

Option D

Explanation:

Please see the attachment

Final answer:

Severing a cat's reticular formation from higher brain regions would cause the cat to fall into a deep coma, as the reticular formation's role in maintaining consciousness is vital.

Explanation:

The reticular formation is a network of neurons located in the brainstem that is crucial for regulating wakefulness and sleep cycles. This part of the brain filters incoming stimuli the spinal cord and relays it to various brain regions, contributing to the processing of sensory information and alertness. It is also involved in various autonomic functions, such as controlling the cardiovascular and respiratory systems. When the reticular formation is severed from the higher brain regions, the result is significant and impactful: the animal, in this case a cat, would fall into a deep coma. This loss of connection prevents the reticular formation from fulfilling its role in maintaining consciousness, thereby causing a state of deep unconsciousness from which the cat cannot be readily awakened.

A neuron cell body reaches threshold and depolarizes. The depolarization propagates down the length of the ______, is chemically transmitted across the ______, and directly affects the electrical potential in the ______ of the successive neuron.

Answers

Answer:

Axon.

Synapse

Dentrite and cell body.

Explanation:

AXON is the transmission conduit for action potential through saltatory conduction at the nodes of ranvier.

Synapse refers to the gap between adjacent nuerones and the entire components of that particular gap.

Denrites which originated from the cell.body received the transmitted signals from.the axon,and transmits this for response at effectors:muscle and glands.

If cells from a carrot are removed and placed in a culture medium, they can develop into a normal adult plant. This demonstrates that carrot cells _____.

Answers

Answer:

Carrot cells are 'totipotent'.

Explanation:

Totipotency is the genetic potential of a plant cell which have all the genes or genetic information by which the cell can be developed into the whole plant similar to the original plant.

Cells obtained from a carrot from its stem, root or any other parts and the cells are kept in a culture medium containing mineral nutrients, vi¬tamins and hormones. The cells in a medium allowed to divide.

As a result, the cells in culture will produce an undifferentiated mass of cells called callus. The callus can give rise to normal plant under given certain ma¬nipulations in the culture.

Thus, the cells of the callus are totipotent.  

Until the middle of the nineteenth century, all peppered moths (Biston betularia) observed around Manchester, England, were light in color. In 1845, a single black peppered moth was reported. As Manchester became more industrialized and dark soot began to cover the bark of the trees, the frequency of black moths increased greatly. The change in proportion of light and dark forms resulted from____________.
Select one:

A. disruptive selection.
B. directional selection.
C. stabilizing selection.
D. genetic drift.
E. increased mutation

Answers

Answer:

B. directional selection.

Explanation:

Changes in environmental conditions over time makes the natural selection to favor one of the extreme phenotypes due to its better survival and reproductive fitness over the other phenotypes. The favored phenotype gradually becomes abundant in the population. This type of natural selection is called directional selection.  

In the given example, industrialization led to the deposition of dark soot over the barks of the tress. The black moths had better survival success as they could blend themselves with the dark background. The light-colored moths were easily picked by predators. This led to a gradual increase in the number of black colored moths in the population. Since one of the extreme phenotypes (black color) was favored, the process is called directional selection.  

One of the main functions of active transport is to supply the cells the oxygen required for metabolism. True False

Answers

Answer:

Answer is False.

Explanation:

The movement of molecules or materials through or across the cell membrane, usually from a lower concentration to a higher concentration, which requires the use or consumption of energy, is known as active transport.

The energy required by this process is in form of Adenosine triphosphate, ATP. Example is sodium - potassium pump.

The parasympathetic division of the autonomic nervous system is defined as the ________

Answers

Answer:

Explanation:

Parasympathetic Nervous System. The parasympathetic nervous system is an anatomically defined division of the autonomic nervous system, being that part whose motor components run in cranial nerves III, VII, IX, and X and in the sacral nerves.

Which description best matches the location of white matter?
A) In both the brain and spinal cord, white matter is superficial.
B) In the spinal cord, white matter is deep while cerebral white matter is superficial.
C) In both the brain and spinal cord, white matter is deep.
D) In the spinal cord, white matter is superficial while cerebral white matter is deep.

Answers

Answer:

b

Explanation:

i

The description best matches the location of white matter - D) In the spinal cord, white matter is superficial while cerebral white matter is deep.

White matter is tissue in the brain composed of nerve fibers. The fibers connect nerve cells and are covered by myelin. The myelin is what gives white matter its white color.

White matter in the spinal cord is sometimes called superficial tissue because it is located in the outer regions of the brain and spinal cord.Gray matter is situated closer to the center of the central nervous system in the brain or cerebral region.In the brain white matter is the tissue in the largest and deepest part of the brain

Thus, The description best matches the location of white matter - D) In the spinal cord, white matter is superficial while cerebral white matter is deep.

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Lauren's friend has recommended that she take a vitamin C supplement before undergoing oral surgery. Lauren is concerned about consuming too much of the supplement.
Which of the following nutrient standards would assist Lauren in determining the highest amount of the supplement that would be safe for her to consume?
Tolerable Upper Intake Level (UL)
Recommended Dietary Allowance (RDA)
Estimated Average Requirement (EAR)
Acceptable Macronutrient Distribution Range (AMDR)

Answers

Answer:

Tolerable Upper Intake Level (UL)

Explanation:

Tolarable upper intake level is defined as the highest level of nutrient that can be consumed such that it  poses no risk of adverse health effects for all the individuals in the general population. If a person consumes more than the  UL, the risk of adverse effects also increases.Therefore, when Lauren has to take vitamin C supplements it is important that she knowns the tolerable upper intake level that is the upper limit so that she can determine the highest amount of supplement that would be safe for her to take.
Final answer:

To understand the maximum safe consumption level of a Vitamin C supplement, Lauren should refer to the Tolerable Upper Intake Level (UL), which indicates the highest amount of a nutrient that can be consumed without adverse effects.

Explanation:

In order to determine the highest safe amount of Vitamin C supplementation, Lauren should refer to the Tolerable Upper Intake Level (UL). The UL represents the maximum amount of a nutrient that most people can consume daily without experiencing negative side effects. These limits are established after reviewing numerous research studies and considering various factors such as age and gender. While the Recommended Dietary Allowance (RDA) and Estimated Average Requirement (EAR) could provide useful information for Lauren, they might not adequately address her specific concern of overdosing. The Acceptable Macronutrient Distribution Range (AMDR), on the other hand, is related to macronutrient ratios and is not specific to individual nutrients like Vitamin C.

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Carbohydrates contain a. carbon, nitrogen, and phosphorus. b. carbon, sulfur, and potassium. c. carbon, hydrogen, and oxygen. d. carbon, helium, and sodium.

Answers

Answer:

Carbon, hydrogen, and oxygen. (Ans. C).

Explanation:

Carbohydrates are defined as macronutrients consisting carbon, hydrogen, and oxygen atoms, which are found in vegetables, fruits, milk products, and grains. They are known as the basic food group, a healthy diet, and playing important role in the proper body functioning. Some important function of carbohydrates are:

1) Carbohydrates provide energy for working muscle, and fuel for the central nervous system.

2) Carbohydrate are also important for brain function.

3) They help to reduce the risk of diseases.

4) In the form of fiber carbohydrates helps to improve the health of digestive system.

Final answer:

Carbohydrates contain carbon, hydrogen, and oxygen. These elements make up monosaccharides, the subunits of carbohydrate molecules. An example is glucose (C6H12O6).

Explanation:

The correct answer to your question is c. carbon, hydrogen, and oxygen. Carbohydrates are biomolecules made up of these three elements. Each carbohydrate molecule is composed of smaller, repeating subunits known as monosaccharides, which, themselves, contain carbon, hydrogen, and oxygen atoms.

This structural feature of carbohydrates is important, as the hydrogen and oxygen atoms typically appear in a ratio that is similar to water, hence the term 'hydrate' in carbohydrates. An example of a simple carbohydrate is glucose, which has the molecular formula of C6H12O6.

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What is the anemia called that is a result of an improper maturation of red blood cells due to a lack of Vitamin B12?

Answers

Answer:

Megaloblastic anemia is a condition in which the bone marrow produces unusually large, structurally abnormal, immature red blood cells (megaloblasts). ... Megaloblastic anemia has several different causes - deficiencies of either cobalamin (vitamin B12) or folate (vitamin B9) are the two most common causes.

Explanation:

In the plant kingdom, all of the species are descended from a single common ancestor. In terms of phylogeny, what type of tree of life is this?

Answers

Answer:

monophyletic tree

Explanation:

A monophyletic tree is when a group of organisms descended from a single ancestor like in the example given. In the image I added you can observe that there are also paraphyletic (showing the most recent common ancestor, but not all of its descendents like monophyletic trees) and polyphyletic trees (unrelated organisms descended from more than one ancestor).

I hope you find this information useful and interesting! Good luck!

The thermic effect of food (TEF) in the amount of energy the body needs to digest absorb metabolize and more the food you consume. Though TEF various depending on the type of food consumed what percentage of calories in the food a generally used for TEF?
a) 20%
b) 10%
c) 5%
d) 15%

Answers

Answer:B-10%

Explanation:

Physiologic changes resulting from the normal aging process place older adults at higher risk for adverse effects.

Which of the following BEST describes a centric holding cusp of a mandibular left second molar?
a. It is the distofacial cusp and occludes in the embrasure between maxillary first and second molars.
b. It is the distofacial cusp and occludes in the central fossa of a maxillary second molar.
c. It is the distolingual cusp and occludes in the embrasure between maxillary first and second molars.
d. It is the distolingual cusp and occludes in the central fossa of a maxillary second molar.

Answers

Answer:

The answer is B- It is the distofacial cusp and occludes in the central fossa of a maxillary second molar.

Explanation:

Centric holding cusp are also called Stamp Cusps, it is a type of cusp in which include the facial cusp of the mandibular and palatal cusps of the maxillar posterior teeth. The occlude into the central fossa and marginal ridges of the opposing teeth. Centric occlusion is the position of mandibular condyle when the jaws are closed and the teeth are in maximum intercuspation. Occlusion is the static relationship of teeth, it means "closing up".

A synapticcleft, or synaptic gap, can be found between a neuron and ______. a. a gland. b. a musclecell. c. another neuron. d. All of these.

Answers

Answer:

d. All of these

Explanation:

A synaptic cleft or synaptic gap is formed during synapsis. It is a gap between membrane of a axon end bulb and a membrane of a target cell. The target cell can be a muscle cell, a neuron, a gland. The membrane of a axon is called pre-synaptic membrane and membrane of a target cell is called post-synaptic membrane and the space between two membranes is called synaptic cleft. Through the synaptic cleft  impulse is transmitted with the help of neurotransmitters such as acetylcholine.

The technique used to teach animals complex tricks, such as teaching pigeons to play ping-pong, is:

Answers

Answer:

this technique is a type of behaviour called " learning behaviour" that includes CONDITIONED REFLEX TYPE 1.

Explanation:

learning behaviour is a type which depends on the environmental influence, but the ability to modify the behaviour depends upon the heredity material.

for example:- in conditioned reflex type 1 the pigeons learn to play ping - pong. in this type of behaviour , the ability of learning depends upon the genetic basis of the individual.

Final answer:

The technique used to teach animals complex tricks, such as teaching pigeons to play ping-pong, is operant conditioning. This method involves shaping behaviors through reinforcement and incorporates stimulus discrimination, enabling the training of animals to perform various tasks.

Explanation:

The technique used to teach animals complex tricks, such as teaching pigeons to play ping-pong, is known as operant conditioning, or instrumental conditioning. This method was extensively developed and utilized by B.F. Skinner, who was able to train pigeons to engage in various complex behaviors. Operant conditioning relies on the use of reinforcers to gradually shape behavior towards a desired outcome. This process often involves shaping, where successive approximations of a behavior are rewarded until the animal performs the complete behavior. It also incorporates stimulus discrimination, which teaches the animal to respond only to specific stimuli, much like Pavlov's dogs were trained to respond to the sound of a bell.

An example of operant conditioning in action is Skinner's training of pigeons to play ping-pong, among other tasks. These pigeons were trained through trial and error, receiving rewards for behaviors that approximated playing ping-pong, until they could perform the task fully. This type of conditioning highlights how animals can learn complex tasks and even categorize stimuli, providing insights into animal cognition and learning processes.

A signal has reached the terminus of a client’s nerve and is in the space where the nerve is closest to the effector cell in a muscle. At what location is this signal?

Answers

Answer:

The options to consider are

a. Synapse

b. Soma

c. Neuron

d. Schwann cell

a. Synapse is the ANSWER

Explanation:

The SYNAPSE (neuronal junction)

is the site where the nerves appears closest to the effector cell in a muscle.

In this spot, electric nerve impulses among two neurons or a neuron and the effector cell in a muscle are transmitted.

A 2% caloric increase in _____ can increase the risk of cardiovascular disease by 23%.a. trans fatty acidsb. saturated fatty acidsc. cholesterold. triglyceridese. an omega-6 to omega-3 ratio of 10:1

Answers

Answer:

Option A, trans fatty acids

Explanation:

Trans fats are the partially hydrogenated oils which are not considered safe for consumption as per the FDA. Since these fats are inexpensive and widely available they are frequently used. Trans fat increases the bad cholesterol of the body and reduces or lowers down the good cholesterol level. Due to this even a small consumption of trans fat put an individual at high risk of heart attack and stroke.

Hence, option A is correct

There are three layers of neurons in the retina. The axons of which of these neuron layers form the optic nerves?

Answers

Answer:

Layer of ganglion cells

Explanation:

Retina constitute the nervous coat/layer of the eye. Retina is further divided into ten layers. These layers from outermost to innermost are:

1. Retinal pigment epithelium

This is the outermost layer and is composed of hexagonal cells containing the pigment melanin.

2. Photoreceptor layer i.e. layers of rods and cons

This layer contains the rods and cones which are end organs of visual reception.

3. External Limiting membrane

This layer lies between layer of rods and cones and outer nuclear layer.

4. Outer Nuclear layer

This layer contains the nuclei of rods and cones.

5. Outer plexiform layer

This layer is characterized by the synapses of axons of photoreceptors and dendrites of bipolar cells.

6. Inner Nuclear layer

This layer contains the nuclei of bipolar cells.

7. Inner plexiform layer

This layer is characterized by the synapses of axons of bipolar cells and dendrites of ganglion cells.

8. Ganglion cell layer/ Layer of ganglion cells

This layer contains the nuclei of ganglion cells.

9. Nerve fiber layer

This layer contains the axons of ganglion cells. These axons form the fibers of optic nerve which is cranial nerve II.

10. Inner limiting membrane

This is the innermost layer of retina and lies next to the vitreous body. Vitreous body is a transparent, avascular jelly-like substance which occupies the posterior chamber of the eye.

ANSWER:

Axons of layer of ganglion cells form the optic nerves.

The three layers of neurons in retina are:

Outer Nuclear LayerInner Nuclear LayerGanglion cell Layer

The axons of the ganglion cell layer in the retina form the optic nerves.

How does the axons work?

The retina is the light-sensitive tissue lining the back of the eye. It consists of three layers of neurons: the photoreceptor layer (containing rods and cones that detect light), the bipolar cell layer, and the ganglion cell layer.

When light stimulates the photoreceptors, they send signals to the bipolar cells, which then transmit the information to the ganglion cells.

The axons of the ganglion cells converge at the optic disc, creating the optic nerves that carry visual information to the brain.

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Biodiversity encompasses the number of: a. ecosystems in a region and number of species in the ecosystem. b. ecosystems in a region, species in an ecosystem, and genes and alleles in a species. c. ecosystems in a region. d. species present in an ecosystem. e. genes and alleles in a species.

Answers

Answer:

b. ecosystems in a region, species in an ecosystem, and genes and alleles in a species.

Explanation:

Biodiversity has three levels - ecosystem, species and genetic diversity. Therefore, Biodiversity  can be defined as the variability among living organisms involving terrestrial, marine, and other aquatic ecosystems, genes and alleles in a species and their ecological complexes such as diversity within species, and between species of the ecosystems.

In general, inversion and translocation heterozygotes are as fertile as organisms whose chromosomes are in the standard arrangement. In general, inversion and translocation heterozygotes are as fertile as organisms whose chromosomes are in the standard arrangement. True False

Answers

Answer:

False

Explanation:

The inversion heterozygotes are the organism that have one member with inverted sequence of gene and the other member of inversion heterozygote is normal. The normal organism contain chromosome in standard arrangement and the other organism consist of a inverted segment of gene that do not possess standard arrangement of chromosome.

The exchange of non homologous segment between two chromosome pairs that result in one normal and one translocation heterozygote. The chromosome are associated in quadrivalent manner at parenchyma stage of meiosis.

The standard arrrangement of chromosomes gets changed in inversion and translocation heterozygotes. Thus, the organism with inversion and translocation are not fertile as organisms whose chromosomes are in the standard arrangement.

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