Answer:
chem. energy, form of amino acids, INTO form of DRNA
Explanation:
cells use both these types of energy for c.respiration...and protein synthesis...
Brainliest if correct!
Study the image.
CHECK ALL THAT APPLY!!!! With the moon at position 3, which positions experience low tide?
3
5
6
9
12
Mostly position 9, you probably also should check positions 6 and 12. The Moon’s gravity starts to affect the ocean’s tides the closer it gets towards one side. The ocean tides on sides 1-5 will be high as a result, because they start to get pulled upward by the gravity of the moon.
The answer would be 12 & 6
What selective pressures might make the sickle cell mutation favorable? Where would this occur, and why?
Sickle cell mutation is most common in Africa and southern half of Europe. The reason for this is because, natural selection made areas with high concentration and history of diseases such as cholera, tuberculosis, yellow fever, and much more.
Answer:
Malarial selective pressure might make the sickle cell mutation favorable. This occurs in African population where malaria is endemic and this happens because the people who are heterozygotes for sickle cell anemia (HbA/HbS) are resistant to malaria so they survive the malarial parasite more successfully than either normal or sickle cell homozygotes.
Explanation:
Sickle cell anemia can be seen as an example of Balancing selection in areas where malaria is endemic. The people who are heterozygous for sickle cell anemia have only one copy of sickle cell allele (HbA/HbS). These people have better chances of surviving malaria because the malarial parasite spends a part of the life cycle in the RBC, if they enter into the RBC which are sickle shaped, they will die. The women who are heterozygous have higher fertility rates, that's why natural selection has not eliminated the allele. The loss of deleterious recessive genes through the death of people who are homozygous is being balanced by the high reproductive rates of women who are heterozygous in malaria prone areas. For this reason the selection is called balancing selection.
which causes the ph of a solution to increase
A.adding hydrogen ions
B.adding protons
C.adding base
D.adding acid
Which of the following correctly describes the energy relationship between first level consumers and third level consumers in this ecosystem?
A.) Third level consumers have 100 times as much energy available as first level consumers.
B.) First level consumers have 10 times as much energy available as third level consumers.
C.) Third level consumers have 10 times as much energy available as first level consumers.
D.) First level consumers have 100 times as much energy available as third level consumers.
B) First level consumers have 10 times as much energy available as third level consumers.
Systolic blood pressure is the amount of pressure that blood exerts __________
Answer:
while the heart beats
Explanation:
Blood pressure of the heart is the pressure by which heart pumps blood through the arteries. Since the blood flow through the heart and arteries is pulsatile, there are two heart blood pressures: systolic and diastolic blood pressure. Normal systolic pressure is about 120 mmHg.
Diastolic blood pressure is the pressure of the blood between heartbeats (when heart is not active, relaxed). Normal diastolic blood pressure is about 80 mmHg.
What is cancer and how does it relate to the cell cycle
Answer:
Cancer is a disease that causes people to fight for their lives.It is part 9f the cell cycle because some people are born with it and some get it when they get older.
PLEASE HELP!! 45 POINTS
1. In human beings, cells are structured differently based on what they need to do.
True
False
2. The integumentary system covers the entire human body.
True
False
3. Matching a person's appearance to a DNA sample involves what technique?
SNP analysis
Base-matching
RNA analysis
Allele pairing
4. What is one of the functions of the integumentary system, which includes skin and hair?
Provide important minerals to the body
Prevent passive transport
Regulate body temperature
Fight infection
5. Cell theory was proposed initially by a zoologist and which other type of scientist?
Biologist
Chemist
Entomologist
Botanist
6. Humans and animals store energy in monosaccharides, found in our muscles and liver.
True
False
7. Lipid macromolecules, or "fats," store energy and make up the plasma membrane of cells.
True
False
8. From the map, which state has experienced the least amount of change in population from 1990 to 2000?
North Dakota
Texas
Oregon
9. What is the most basic unit that makes up a piece of granite?
Grains of dirt
Cells
Sand
Atoms
10. In the levels of organization for biological systems, you identify populations, tissues, organs, and organisms. Which of these four is the smallest level of organization?
Population
Tissue
Organ
Organism
11. An organism, by definition, consists of multiple cells.
True
False
12. You are examining a substance found at a crime scene. Using a chemical test, you are able to determine that glycogen is present in the substance. What does this mean for your investigation?
The substance is from an animal source.
The substance is the poison ricin.
The substance is from a plant source.
The substance is a lipid.
13. You are examining evidence from an old crime scene. You have a blood sample, but you believe that the sample may be too degraded to get DNA from. You decide to try to retrieve mtDNA from the sample and compare it to a sample from your suspect. What information could this sample give you?
That the blood at the crime scene belonged to your suspect
That the suspect has blond hair and blue eyes
That there is a maternal relation between the two people
That the person from the crime scene have been near the suspect
14. What do amino acids link together to form during protein synthesis?
Polypeptide chain
Polysaccharide
Ribosome
DNA code
15. Ricin kills by attacking what part of a cell?
The membrane, causing cells to dissolve
The ribosomes, causing cells to "starve"
The nuclei, causing cells to collapse
The DNA, causing cells to be unable to reproduce themselves
Answer:
true for the first one and I think false for the 2nd one
Answer:
1. "In Human beings, cells are structured differently base on what they need to do". The
answer is True.
2. "The integumentary system covers the entire human body". This assertive is false.
Explanation:
1. Cells are structured that are like basics buildings blocks of all living beings.
For sure, depends on which place the cells are include: brain, heart, lungs, stomach etc.
But, in the other hand, Cells have a basic structured like the following: cytoplasm; cytoskeleton; endoplasmic reticulum; Golgi apparatus; Lysosomes and Peroxisomes; Mitochondria; nucleus; Plasma membrane and Ribosomes.
Based on this information above adduced, you can see that we have a lot of
functions about the cells in human beings, but we have cells inside the plants too.
2. The integumentary system is a set of structures that covers all external coating the
entire human body. But, like this assertive is saying that cover the entire human body,
independent which place of body: external or internal and on vertebrate this external
coating calls Skin and the color of all kind of Skins depends on the amount of
melanin.
What's the name of the black hole region that creates the gravitational force holding the Milky Way together?
Answer:
Sagittarius A*
Explanation:
Answer:
Sagittarius A*
Explanation:
Holding the Milky Way together requires a massive object that can exert strong gravity over objects that are tens of thousands of light years away. This strong gravity is provided by a supermassive black hole near the center of the galactic bulge; the region occupied by this black hole is called Sagittarius A* (pronounced "A star").
The carbon that plants need for photosynthesis comes from?
A. Carbon molecules dissolved in water
B. Carbon dioxide gas in the atmosphere
C. Carbon atoms from the breakdown of food
D. Carbon molecules that the plant produces
Answer: carbon dioxide gas in the atmosphere (b)
Explanation:
i just got this question on Study Island
Histamine increases blood flow and vascular permeability. This would account for all of the following changes that occur during inflammation, exceptswelling of the inflamed tissue.redness of the inflamed tissue.movement of defense proteins and cells into the interstitial space.chemotaxis of phagocytes.heat of the inflamed tissue.
Answer:
chemotaxis of phagocytes
Explanation:
Histamine is a chemical involved in inflammation but it also has role as a neurotransmmiter in central nervous system and uterus It is synthesized by the two types of cells: basophils and mast cells and it acts via binding to its receptors (histamine receptors). Roles of histamine are:
vasodilatation and consequently decrease in the blood pressureincrease vascular permability in the nose cavity (runny nose)regulates sleep-wake cyclestimulates gastric acid secretion in the stomach etc.Giardia is an important waterborne disease. this organism is a select one:
a. virus
b. protozoan
c. bacterium
d. fungus
Answer: Giardia is a microscopic parasite that causes the diarrheal illness known as giardiasis. Giardia is found on surfaces or in soil, food, or water that has been contaminated with feces from infected humans or animals.
Explanation:
What are the most typical pollutants in water and how are they removed?
Answer:
AgriculturalOil polutionRadioactiveExplanation:
There is a wide range of water pollutants usually influenced by humans. Water pollution is a huge problem that affects water ecosystems and their surrounding. Pollutants can be divided into two major groups, according to their source: point source pollutants (from a single source) and non-point source pollutants (from more different sources).
Agricultural and industrial pollutants-consequence of the use of fertilizers and pesticides; the pathogens are washed into the water together with nutrients (such as phosphorus and nitrogen) which lead to the algae blossom.The only way to limit and control this type of pollution is by government regulations.
Oil pollution-consequence of tanker spillsThis type of pollution can sometimes be removed (digging up the tanker).
radiactive, toxic substances, plastic bags are also the huge problem, especially in the oceanOffshore wind turbines are more efficient compared to onland wind turbines. Which statement best describes the advantage of using offshore wind turbines than onland wind turbines?
A) Offshore wind turbines use more water compared to onland wind turbines.
B) Offshore wind turbines need more space compared to onland wind turbines.
C) Offshore wind turbines contributes to carbon emissions compared to onland wind power turbines.
D) Offshore wind turbines have more consistent wind power and speed compared to onland wind turbines.
The answer is Letter D
D) Offshore wind turbines have more consistent wind power and speed compared to onland wind turbines.
Which of the following individuals will inherit an X-linked allele from a man who carries it?
A) all of his children
B) all of his daughters
C) all of his sons
D) half of his daughters
Answer:
B) all of his daughters
Explanation:
The males's genome contain XY chromosomes, while female's genome have XX chromosome. If a man has X-linked allele it will be expressed (e.g. the diseases will appear). If a woman has one X-linked allele she will be the carrier (but will not develop the disease). Daughter will inherit one X chromosome from mother and another from father. So, if a man has X-linked disease, all of his daughters will become carriers of the disease.
All of a man's daughters will inherit an X-linked allele from him because males pass on their X chromosomes to their daughters and Y chromosomes to their sons. Daughters will be carriers of a recessive X-linked trait or express a dominant one, while sons have no chance of inheriting an X-linked allele from their father.
Explanation:The individual who will inherit an X-linked allele from a man who carries it will always be all of his daughters. This is because males have one X and one Y chromosome, whereas females have two X chromosomes. A man will pass his Y chromosome to his sons and his X chromosome, which could have the affected allele, to his daughters. Thus, any X-linked allele (either dominant or recessive) that is present in the father will necessarily be passed on to his daughters.
If the X-linked allele that the man carries is for a recessive trait, such as hemophilia or red-green color blindness, his daughters will be carriers of the trait. If the man has a X-linked dominant allele, his daughters will express the trait. The inheritance pattern is different for sons as they receive their X chromosome from their mother and the Y chromosome from their father. If the mother carries a recessive X-linked allele and the father does not, sons will have a 50% chance of inheriting the trait if they receive the affected X chromosome from their mother. Conversely, daughters will have a 50% chance of being carriers if they get the affected X from the mother.
NEED HELP QUICK ON BIO FINAL
The graph below shows the frequency of moths in a population. The original population had more black and white speckled moths, but the new population has more dark-colored moths.
a. What type of selective pressure was taking place in this population?
b. Come up with a hypothesis related to genetic drift or sexual selection about why this shift may have occurred in the population.
Answer:
This actually happened in real life. A hypothesis for b. is that if pollution made the trees in the moths environment darker, then the dark moth population would increase because they blend in with the darker trees better than the speckled moths and are not as visible to predators (this is related to genetic drift). Therefore a. would be natural selection since the dark moths are more fit to the environment.
Final answer:
The type of selective pressure taking place in this population is directional selection. A hypothesis related to genetic drift or sexual selection for why this shift may have occurred in the population is that there could have been a genetic mutation that caused the moths to have a darker coloration.
Explanation:
The type of selective pressure taking place in this population is directional selection. Directional selection occurs when the environment changes, and a population undergoes selection for phenotypes at one end of the spectrum of existing variation.
A hypothesis related to genetic drift or sexual selection for why this shift may have occurred in the population is that there could have been a genetic mutation that caused the moths to have a darker coloration. This mutation would have been advantageous in the new environment, leading to an increase in the frequency of dark-colored moths over time.
Organisms such as plants that make their own food are called
Answer:
Autotrophs are organisms, such as plants, that can make their own food.
Hope this helps!
Although many chimpanzee population live in an environments containing oil palm nuts, members of only a few population use stones to crack open nuts. The most likely explanation for this behavioral difference between population is that
1) the behavioral difference is caused by genetic difference between population 2) members of different population have different nutritional requirements 3) the cultural tradition of using
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Glucose enters the epithelial cells of the small intestine against its concentration gradient. Select the BEST explanation from the following. Glucose is co-transported in the Na /K pump. Glucose is co-transported with Na , which moves down its concentration gradient into the cell. Glucose follows the water that is pumped into the cell. Glucose is transported through a glucose pump in the apical membrane that hydrolyzes ATP to ADP and Pi. Glucose enters by diffusion.
Answer:
Glucose is co-transported with Na , which moves down its concentration gradient into the cell.
Explanation:
Na/K pump is a pump located on the plasma membrane which uses ATP to move 3 Na ions out the cell and brings in 2 K ions into the cell. It is an example of primary active transport. As a consequence,concentration of Na is higher outside the cell, while K concentration is higher inside the cell.
Glucose is transported in the cell against its gradient, together with Na ions (symport) which move down their concentration gradient.
This is an example of secondary active transport because it uses the energy from the primary active transport to move other substances such as glucose against their own gradients.
Final answer:
Glucose is actively transported into intestinal epithelial cells via secondary active transport using a Na+/glucose symport mechanism. Sodium ions moving down their gradient provide the energy for glucose to be transported against its gradient with the help of SGLT1 and Na+/K+ ATPase.
Explanation:
Glucose enters the epithelial cells of the small intestine against its concentration gradient by a process known as secondary active transport. This involves a symport mechanism, where glucose is co-transported with sodium ions (Na+). The sodium ions move down their concentration gradient into the cell, providing the energy needed to transport glucose against its gradient.
The primary transporter involved is the sodium-glucose co-transporter 1 (SGLT1), which couples the transport of glucose with two sodium ions. This process utilizes the sodium electrochemical potential gradient created by the Na+/K+-ATPase, which actively pumps sodium out of the enterocyte into the blood, maintaining a low intracellular sodium concentration, and allowing the continued inward movement of sodium (and glucose).
Finally, glucose is transported from within the enterocytes into the bloodstream through the basolateral membrane by facilitated diffusion, using the glucose transporter GLUT2.
What is the maximum number of atp molecules that can be produced during the electron transport stage of aerobic respiration?
Answer:
34 ATP molecules
Explanation:
A structure that seems to serve no purpose in an organism is called:
homologousvestigialdichotomousfossilized
Answer:
vestigal
Explanation:
Vestigal structures refer to organs or even behavior that have been lose their function through the evolution. Simply saying, functionless structures. Some of the examples in humans are: tailbone, appendix, inside corner of the eye, goose bumps.
Vestigal structures can also be found on the molecular level, for example pseudogenes.
Which of the following organisms would occupy the lowest trophic level of any ecosystem?
1. humans, bears, and pigs
2. lions, wolves, and snakes
3. cows, horses, and caterpillars
4. plants, bacteria, and algae
Answer:
4
Explanation:
Because most of these organisms are autotrophs meaning they make their own food from abiotic factors. Organisms higher up the food chain are heterotrophs meaning they feed on other organisms for energy. Organisms at lower trophic levels usually have higher biomass (in higher population numbers) than higher organisms. This is because of the inefficiencies of passing energy up the food chain.
Final answer:
The lowest trophic level in any ecosystem is occupied by primary producers; thus, plants, bacteria, and algae are the correct answer as they can photosynthesize and make their own food.
Explanation:
The organisms that occupy the lowest trophic level of any ecosystem are those that are the primary producers. In the options provided, the organisms belonging to the lowest trophic level would be plants, bacteria, and algae, as they are capable of photosynthesis, making their own food from sunlight, water, and carbon dioxide. These primary producers are at the base of the food chain and provide energy for all other organisms in the ecosystem.
The other options listed, such as humans, bears, pigs (omnivores), lions, wolves, snakes (carnivores), and cows, horses, caterpillars (herbivores) all consume other organisms and so occupy higher trophic levels.
Match the gases with the explanation that best describes how it’s proportion changed during the evolution of the atmosphere
Answer:Match the gases with the explanation that best describes how it’s proportion changed during the evolution of the atmosphere
Explanation:Match the gases with the explanation that best describes how it’s proportion changed during the evolution of the atmosphere
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you inbred
if a tall stem is a dominant characteristic, how many tall alleles must be present for an offspring to express a tall trait?
A. both alleles contain instructions for tall
B. at least one allele contains instructions for tall
C. at least one parent is tall
D. both parents are tall
The answer would be B
You are a geneticist who is analyzing someone’s sex chromosome. It shows as XO. Which of the following disease or disorder does he/she have?
A. Hemophilia
B. Trisomy 21 or Downs Syndrome
C. Edwards Syndrome
D. Klinefelter’s Syndrome
Answer:
I'm not quit sure about this but I'm sure its hemophilia. Yes I'm a middles schooler who is answering a high schooler's question but in my biology class i do high school things here and there.
Explanation:
I'm sure it is hemophilia because 1. a father only passes one of his sex chromosomes which is either x or y (X for girl and Y for boy). 2. the new born can get, from the mother, either an x chromosome with the hemophilia or the other x with the normal blood clotting gene. I hope this helps and if not I am sorry
Which of the following is not an example of an organism responding to a stimulus?
A)a dog jumps when you accidentally drop a heavy object
B)squinting your eyes when walking into bright sunlight
C)your kidneys filter excess water from your bloodstream
D)algae in pond water moving toward a light source
An answer choice that is not an example of an organism responding to a stimulus would be;
B) squinting your eyes when walking into bright sunlight
Squinting your eyes in bright sunlight is an involuntary action, and does not require any kind of stimulus.
Answer:
The answer is B
Explanation:
thats just the sun burning your eyes
How do plants overcome the lack of locomotion to find mates and disperse offspring?
some plants produce both Male and female parts, in conjunction with wind, can fertilize itself.
The genetic makeup that is responsible for a particular trait
Answer:
the genotype is responsible for a particular trait or all of the traits
Explanation:
A genotype, containing alleles inherited from the parents, is responsible for a specific trait. The observable expression of this genotype is known as a phenotype, which is influenced by both genetic and environmental factors. Genetic information, coded within the cells' chromosomes, is passed from the parents to the offspring during reproduction.
Explanation:The genetic makeup responsible for a specific trait is referred to as a genotype. The genotype comprises the inherited alleles from an individual's parents, which are the variations of a gene that code for a specific trait. This genetic information is contained within the cells' chromosomes.
The phenotype, on the other hand, is the observable expression of that genotype, a combination of genetic and environmental influences. For example, let's take hair color. A gene may code for hair color, and different alleles of that gene will result in different hair colors. This interaction between the genotype and environmental factors leads to the physical expression of traits.
When a sperm and egg combine during reproduction, each contributes 23 chromosomes, creating a zygote with a total of 46 chromosomes. These chromosomes carry the genetic information that determines the offspring's traits, passing along genes to ensure the offspring will belong to the same species and will have similar characteristics.
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James is a farmer who covers about 70% of his soil surface with crop residue to reduce erosion. Which type of soil preparation is he implementing? 1Points A conservation tillage B crop rotation C fertilization D irrigation
Answer:
A. Conservation tillage
Conservation village covers about 70% of his soil surface with crop residue to reduce erosion.
What is Conservation village?
The statutory definition of a Conservation Area ,an area of special architectural or historic interest, the character of which it is desirable to preserve or enhance.
Can you build on a conservation area?You will need to seek planning permission for certain types of work that would not normally need permission.
Hence , A is correct option
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True or False? (psychology)
Dissociative identity disorder is no longer controversial as the production of books and movies has raised a new understanding of the affliction.
Answer:
False
Explanation:
Dissociative identity disorder is a mental illness in which the person is diagnosed with having two or more different personalities with memory gaps or forgetfulness in between these different personality states. The disorder is a controversial one, and the movies and books focusing on the disorder have failed to reduce this controversy as these books and movies often associate the disorder with violence and crime and ignore other important aspects of the mental problem. The movies and books are often written and made to make the disorder seem more dramatic and hence, often revolve around thriller or horror genre and do not portray the personal struggle of the sufferers, the patients are actually tended towards hiding their disorder rather becoming too violent or dramatic as shown in the movies and written in the books.Hence the movies and books only heighten the controversy associated wit the disorder.The cell membranes of Antarctic ice fish might have which of the following adaptations?A) very long chain fatty acidsB) branched isoprenoid lipidsC) a high percentage of polyunsaturated fatty acidsD) a higher percentage of trans-fatty acidsE) no cholesterol
Answer: a high percentage of polyunsaturated fatty acids
Explanation:
Cell membranes are semi-permeable membrane, which is selective for certain molecules.
The correct answer is:
Option C. a high percentage of polyunsaturated fatty acids
The adaptation of cell membranes of antarctic ice fish are:
1. The ice fish of Antarctica is known as Channichthyidae. The blood of the icefish is extremely low viscous and making it easier to pump throughout the body.
2. The cell membranes of the antarctic fish are made up of unsaturated fatty acids chains. These adaptations of the cell membrane help the fish to survive at a lower temperature. It also helps in maintaining the transition phase of the liquid to the gel phase.
Thus, the correct option is Option C.
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