C. Carbon
Mercury is dangerous to humans
Carbon is the main element in organic compounds, so carbon is essential to life on Earth.
All living things are made up of c. Carbon
List the levels of cellular organization from smallest to largest including a definition for each level
The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Hope this helps!
The level of cellular organization from smallest to largest are: molecule, organelle, cell, tissue, organ, organ system, organism.
Molecule: The smallest level of cellular organization, consisting of atoms bonded together to form chemical compounds.
Organelle: Specialized structures within a cell that perform specific functions, such as the nucleus or mitochondria.
Cell: The basic structural and functional unit of living organisms, capable of carrying out essential processes.
Tissue: A group of similar cells working together to perform a specific function in the body.
Organ: A structure composed of multiple tissues that work together to carry out a particular physiological function.
Organ System: A group of organs that collaborate to perform essential functions for the entire organism.
Organism: The highest level of cellular organization, representing a complete, individual living being.
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Skeletal muscle fibers with the greatest endurance rely on ________ for energy.
A. anaerobic glycolysis
B. oxidative phosphorylation
C. lactic acid accumulation
D. ketone body degradation
The endurance of skeletal muscle fibers is powered by oxidative phosphorylation. This process generates the ATP necessary for prolonged muscle activity and is dependent on oxygen.
Explanation:Skeletal muscle fibers with the greatest endurance rely on oxidative phosphorylation for energy. This process is a part of cellular respiration, where energy from nutrients is converted into ATP (adenosine triphosphate), the primary energy currency of cells. This energy-providing pathway relies on oxygen, and it occurs within the mitochondria, an organelle often referred to as the 'powerhouse of the cell', allowing the muscle fibers to sustain their activity for longer periods without getting fatigued.
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The diploid number of chromosomes in horses is 64. what is the haploid number of chromosomes in horses? 64 16 32 128
32
Haploid = Half
Diploid = Double
So...
64 ÷ 2 = 32
Answer:
C.32
Explanation:
You just divide 64 by 2
64÷2=32
Haploid=half
diploid=double
So horses have 32 haploids and 64 diploids
^U^
HOPE DIS HELPS
The material labeled k contains elements that do not conduct heat electricity well. The material that make up k are most likely
Answer: Metals
K is in the group 1 which contains mostly metal.
THE ONE ON THE LEFT
In a hydroelectric power plant, water is stored high above a turbine. As it falls, the water spins the turbine blades to generate electricity. Which form of energy does the stored water have?
A.
elastic potential energy
B.
gravitational potential energy
C.
radiant energy
D.
vibrational energy
Answer:
B. gravitational potential energy
Explanation:
If we talk about gravitational potential energy, it is the energy that a body or object possess due to its certain position in a gravitational field.
This energy is commonly used by an object that is present near the earth surface where the value of gravitational acceleration is around 9.8 m/s2.
If we talk about a hydroelectric power plant, where water is stored high above a turbine, it means it is at a certain height from the earth. Because water is stored high above a turbine but is starts to fall due to gravitational energy (GPE) towards the earth. When water falls this gravitational potential energy is converted into kinetic energy that moves the turbine. When the turbine moves, generator that is connected to it converts kinetic energy into electrical energy.
Thus the energy that is triggering the whole process is GPE, that is is why the most appropriate option is B: gravitational potential energy.
Hope it help!
In pea plants, tallness (T) is dominant to shortness (t). What is the predicted genotypic ratio of the offspring if a homozygous shirt plant is crossed with a heterozygous y'all plant?
How does sweating help to cool and regulate body temperature? A) The increased salt concentration of the body's cells helps maintain a lower body temperature. B) Water has a high heat of vaporization; the human body can dissipate excess heat by the evaporation of sweat. C) The low specific heat of water allows it to readily evaporate into the atmosphere, quickly cooling your body. D) Water's cohesive properties cause water molecules to stick together requiring the body's thermal energy to evaporate sweat into the air.
the answer is c i think
Answer:
B) Water has a high heat of vaporization; the human body can dissipate excess heat by the evaporation of sweat.
Explanation:
Heat of vaporization is the amount of heat required to convert a one gram of liquid into a gas. Water has a very high heat of vaporization that is why more and more heat/temperature is required to evaporate it. We have sweat glands in our body. In hot summer weather, sweat is released from the glands as soon as sunlight falls on our body. Because of the sunlight, this sweat gets evaporated and we feel cooling sensation. In short, this heat from sunlight rather than destroying our body is rather used to evaporate the water from our body in the form of sweat. High heat of vaporization plays a very important role in this mechanism because due to high heat of vaporization more and more heat can be absorbed by water and our body can withstand very high atmospheric temperature.
How do biozones help scientists determine the age of a rock unit? a specific biozone can indicate a particular type of past environment. a biozone can help trace the path of evolution over time. the relative age of the rock can be determined by the types of fossils it contains. the fossils in different rock layers are not related to each other?
The correct answer is that a biozone can help in tracing the path of evolution over time.
Biozone refers to a stratigraphic unit that comprises fossils in the layers of strata prevailed in a specific geologic period. It is termed as biozone as it signifies the number of biological taxa prevailed in specific strata. Thus, the changes in characteristics within the taxonomic groups in biozones can provide the indication of evolution with regard to time.
What type of reasoning is used in this example? Penguins eat fish. Sparrows eat insects. Robins eat worms. Vultures eat carrion. Hawks eat mice. Doves eat seed. Birds have diverse diets.
Final answer:
The reasoning in the example is inductive, where specific observations about different bird diets lead to a general statement about the diversity of bird diets.
Explanation:
The type of reasoning used in the example provided by the student is inductive reasoning. Inductive reasoning involves looking at specific instances or observations and then making a generalization or conclusion based on them. In the example, various types of birds (penguins, sparrows, robins, vultures, hawks, doves) are shown to have different diets, and from these specific cases, the conclusion is drawn that birds, in general, have diverse diets. This reflects the reality that birds have adapted to a wide range of habitats and food sources. Birds have evolved specialized beak types and digestive systems to match their specific dietary needs, as seen in raptors with sharp, hooked beaks for tearing prey and hummingbirds with long beaks for reaching nectar in flowers.
All vertebrates have general sensors in their skin for touch pressure and pain these are called
The correct answer is mechanoreceptors.
The mechanoreceptors refer to the receptors, which instructs the CNS about the sensations of vibration, touch, and skin tension. They are sensitive to the mechanical distortions of the skin stimulated by coming in exposure with the objects.
They are situated at the origin of the exteroreceptive sensitivity epicritic touch and permits the analysis and exploration of the external surrounding. They possess high sensitivity and are associated with the fast-conductive large sized myelinated fibers.
On a home visit to an older adult with chronic heart failure, the nurse notes that a 6-month-old grandchild lies quietly in a crib, rarely smiles or babbles, and barely has basic needs attended. the client is the primary caregiver for the infant. what should the nurse do?
The gathering of information regarding a patient's and its associated individual's psychological, physiological, spiritual, and sociological status by a licensed Registered Nurse is known as nursing assessment. It is the initial step in the process of nursing.
In the given case, the nurse should initiate a recommendation to a suitable agency to evaluate the requirement for a home health aide and scheduling a family meeting, which will make sure that a complete assessment for the requirements of the family is made and the suitable assistance is initiated.
WILL MARK BRAINLIEST!!!!PLEASE HELP NOW !!!!!
Which statement best explains why liver cells function differently than kidney cells?
A. The two types of cells contain different genes.
B. Different genes are expressed in the two types of cells.
C. The two types of cells contain different DNA.
D. Different DNA is expressed in the two types of cells.
Can someone help me please
1st one is a decomposition reaction and the 2nd question's answer is the second answer I think.
Question 26
What are the structures labeled #1 and #2 in the diagram below?
A
centrioles; spindle fibers
B
chromosomes; centrioles
C
spindle fibers; centromeres
D
centrioles; sister chromatids
(PLEASE ANSWER)
Answer:
A . centrioles; spindle fibers
Explanation:
1. Centrioles are a cell organelle present in all animal cells in pair. In plant cells, centrioles are present in the male gametes of ginkgo, cycads, and bryophytes. They are normally present near the nucleus but can be seen only when the cell is dividing. Centrioles are made of a set of three microtubules. The microtubule is made of tubulin protein. Centriole forms and organize spindle fibres during cell division.
2. Spindle fibres are filaments which are formed during mitosis and meiosis. They are made up of microtubules and formed by centrioles. Spindle fibres formed at opposite poles of the cell and meet at the equatorial plane. They arranged like a spindle-shaped structure, so they named as spindle fibres. They help in moving and separating the chromosomes during cell division.
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The heat-trapping ability of some gases in the atmosphere can be compared to
a.condensation because of heating.
b.the way glass traps heat in a greenhouse.
c.heating water on a stove.
d.the melting of snow.
Cancerous condition involving white blood cells
1. Thrombocytopenia
2. Embolus
3. Anemia
4. Polycythemia
5. Leukemia
Leukemia is a cancer that affects white blood cells and begins in the bone marrow. It results in the creation of a large number of abnormal, non-functioning white blood cells. This differs from other conditions such as Thrombocytopenia, Embolus, Anemia, and Polycythemia.
Explanation:The cancerous condition involving white blood cells is known as Leukemia. This type of cancer begins in the bone marrow and results in a high number of abnormal white blood cells. These abnormal cells do not perform the role of normal white blood cells, which is to fight against infections. Compared to other conditions such as Thrombocytopenia, Embolus, Anemia, and Polycythemia, Leukemia directly affects white blood cell production and functioning, making it the correct answer to your question.
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The function of the titin protein is to
A. stabilize the position of the contractile filaments.
B. pull Z lines together during contraction.
C. interact with actin during contraction.
D. release calcium during contraction.
E. cover the myosin binding site on the actin molecule.
Hai :3
Question about physiology.
In order to answer your question, you need to know what is titin. Titin is a protein that is considered the largest of its kind, and is the most abundant after myosin and actin (Did you know that?). Titin is responsible for the passive elasticity that you have in your muscles. This protein is very important when it comes to the assembling of striated muscle tissues.
The answer to your question is A. stabilize the position of the contractile filaments, because titin connects the Z disc to the M line (sarcomere).
The function of the titin protein is to stabilize the position of the contractile filaments. It plays a crucial role during muscle contraction by controlling the length of the sarcomere and preventing its overstretch.
Explanation:The function of the titin protein is to A. stabilize the position of the contractile filaments. Titin is a large protein that serves as a molecular spring which is responsible for the passive elasticity of muscle. It plays a vital role in muscle contraction by controlling the length of the sarcomere, which is the basic functional unit of muscle tissue.
Titin also helps in stabilizing the position of myosin, the thick filament, centering it between the actin, the thin filament, thus preventing overstretch of the sarcomere.
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Define what a fossil is?
A fossil is the remains of a prehistoric animal or plant, that turned into rock over many years.
your two friends just told you what to order for them at the drive through fast food restaurant. You give the order but when the food comes about 10 minutes later, you don't remember what each of your friends ordered your memory of the order was in __ memory.
A. semantic
B. flashbulb
C. long-term
D. short-term
I think I know but I'm not really sure
c hopes this helps jfhghfghrehrehrgkre
Carbon dioxide is an example of an _____ transported by the cardiovascular system to excretory organs and tissue
One important difference between the anatomy of roots and the anatomy of leaves is that
a. root cells have cell walls and leaf cells do not.
b. only leaves have phloem and only roots have xylem.
c. leaves have epidermal tissue but roots do not.
d. vascular tissue is found in roots but is absent from leaves.
e. leaves have mesophyll tissue but roots do not.
Answer: e. leaves have mesophyll tissue but roots do not.
Mesophyll tissues are found in the leaves of the plant, they are not found in roots. The primary role of mesophyll tissues is photosynthesis. Mesophyll tissues are made up of two types of cells.These include palisade parenchyma cells and spongy mesophyll cells. Palisade parenchyma cells are present beneath the upper epidermis of the leaf. They are elongated cells, which contains large number of chloroplast. The chloroplast helps in trapping sunlight energy.The spongy mesophyll cells are present beneath the palisade parenchyma cells and above the lower epidermis of the leaf. These are loosely arranged spherical cells, which consists of empty spaces or large pores and few chloroplast. The empty spaces or large pores helps in gas exchange between the internal and external environment of leaf.
Final answer:
Leaves have mesophyll tissue for photosynthesis, a feature that is absent in roots, making option e) the correct answer to the difference between the anatomy of roots and leaves.
Explanation:
One important difference between the anatomy of roots and the anatomy of leaves is that leaves have mesophyll tissue but roots do not. The mesophyll is the layer in the leaf where photosynthesis takes place, consisting of the palisade and spongy cells, and is not present in roots. Unlike the options suggesting roots or leaves lack certain cell types or vascular tissues, roots and leaves both contain epidermal, vascular (xylem and phloem), and various specialized cells that contribute to their respective functions. Roots are designed for anchorage, water and mineral absorption, and sometimes storage. On the other hand, leaves are primarily the photosynthesis sites, requiring mesophyll tissue for this process. Therefore, option e is the correct answer.
When antigens are administered to produce immunity, why are different routes of administration considered?
a. Different routes allow the speed of onset of the antigen to be varied, with the intravenous route being the fastest.
b. Some individuals appear to be unable to respond to an antigen by a specific route, thus requiring the availability of different routes for the same antigen.
c. Antigen-presenting cells are highly specialized and thus require stimulation by different routes.
d. Each route stimulates a different lymphocyte-containing tissue, resulting in different types of cellular and humoral immunity.
Hai there :3
Your question is related to pathology.
When antigens are administered to produce immunity, different routes of administration are considered because each route stimulates a different lymphocyte-containing tissue, resulting in diff. types of cellular and humoral immunity (D.)
During the process of replication, a molecule of DNA unzips, forming two single strands. What makes up each individual strand of DNA?
A geologist out in the field comes across the landform pictured here. She identifies it as having steep slopes, which give it a higher elevation. The top, however, is relatively flat, so it has low relief.
What type of landform is this?
A) plain
B) plateau
C) mountain
D) valley
Plateau is an Area of Highland with Steep Slopes and is Relatively Flat on the Top.
The Type of Landform the Geologist came across is Plateau.
Answer:
b.) plateau
Explanation:
edge 2021
I need help with number 12
What 2 roles do pigments play in photosynthesis?
Photosynthetic organisms capture energy from sunlight with two types (A&B) pigments.
Because they interact with light to absorb only certain wavelengths. Pigments are the means by which the energy of sunlight is captured for photosynthesis.
Please help asap! 55 points
Pretend that you are a food, such as pizza, traveling through the digestive system. Explain what happens to you (food) in the digestive tract from the time you are placed in the mouth until you exit the body. What do you see along the way? What happens to you at each part of the journey? Make your story creative and fun. This is a 1 page essay.
Your story should have the following elements:
• Describe how food travels through the digestive system.
• Include 3-4 different foods.
• Explain what occurs at each organ of digestion.
• Be written in the first-person point of view (This means you pretend that you are the food, so use I and me to refer to yourself).
Include these key words and phrases: stomach, digestion, small intestine, large intestine, mouth, anus, and complete digestive system
Real answers only please! If someone could give me an idea on how to write this essay, like a draft or something, or if someone could write this for me that'd be really great because i don't have an idea for this. thanks!
It is unhealthy to eat and deceptively inexpensive to purchase. These products are processed, manufactured, and have additional sugars, chemicals, and harmful substances that may have a negative immediate and long-term impact on health.
What is Junk food?Junk foods are processed foods with a lot of calories, but that definition is merely a general one. These foods are designed so that they taste good and look appealing that you are biologically wired to want more.
Commercial products that have little or no nutritional value but are high in calories, salt, and fats may be regarded as junk foods, according to Dr. Sunali Sharma, a dietician and nutritionist at Amandeep Hospital.
This includes salted snack foods, gum, candy, sugary desserts, fried fast food, and sweetened carbonated beverages. Even though not all fast food is junk food, many of them are.
Therefore, It is unhealthy to eat and deceptively inexpensive to purchase. These products are processed, manufactured, and have additional sugars, chemicals, and harmful substances that may have a negative immediate and long-term impact on health.
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What is the science of describing, naming, and classifying organisms called?
Taxonomy is the science that involves describing, naming, and classifying organisms. It's a system developed by Carolus Linnaeus and uses a hierarchical structure to categorize organisms based on shared characteristics. It also includes the binomial nomenclature that assigns each organism a genus and a species name.
Explanation:The science of describing, naming, and classifying organisms is known as Taxonomy. This scientific discipline was developed by the Swedish botanist, zoologist, and physician named Carolus Linnaeus, who published his system of categorization, the Linnaean taxonomy, in 1735. It's a hierarchical model of classification that organizes organisms based on shared characteristics and can be as simple as color or as complex as genetic traits. From broadest to specific, the categories are: domain, kingdom, phylum, class, order, family, genus, and species.
A notable feature of taxonomy is binomial nomenclature, which assigns each organism two Latin names: genus and species. For example, in Felis catus (house cat), 'Felis' refers to the genus, while 'catus' points to the species. This system of naming allows scientists across different regions and cultures to have consistent terminology for organisms.
Taxonomy is more than just an accounting of species; it determines an organism's unique characteristics and helps in identifying where that organism fits in terms of other described species. This understanding and classification of the myriad of living species help conserve and harness the benefits from this biodiversity.
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________ is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle.
A. Protein
B. Glucose
C. Fatty acid
D. Phosphocreatine
Hai :3
What is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle?
The answer would be D. Phosphocreatine, because phosphocreatine plays a major role on energetic homeostasis in both active skeletal and cardiac muscles. Phosphocreatine is basically creatine but phosphorylated, and that is why it has such a name. It has the role of turning ADP (adenosine diphosphate) into ATP (adenosine triphosphate).
Remember, ATP is the currency of life! That is what my biology teacher taught me.
Phosphocreatine is the backup energy molecule that can be rapidly converted to ATP in active skeletal muscle. It donates high-energy phosphate groups to ADP to regenerate ATP, helping meet immediate energy needs during heavy or sudden exertion.
Explanation:The backup energy molecule that can be rapidly converted to ATP in active skeletal muscle is D. Phosphocreatine. When the body is at rest or engaged in low-intensity activity, ATP (adenosine triphosphate) is readily available. However, during sudden or intense physical activity, the ATP stores can quickly get depleted. To avoid exhaustion of ATP, the body keeps a backup energy molecule called phosphocreatine.
Phosphocreatine acts as a reserve of high-energy phosphate groups that can be quickly donated to ADP (adenosine diphosphate) to regenerate ATP. This quick turnover allows skeletal muscle cells to meet the immediate energy needs during heavy or sudden exertion, thus postponing muscle fatigue.
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The elongation of the leading strand during DNA synthesis
A) progresses away from the replication fork.
B) occurs in the 3' → 5' direction.
C) produces Okazaki fragments.
D) depends on the action of DNA polymerase.
E) does not require a template strand.
The only correct one is D - depends on the action of DNA polymerase.
A - no progresses towards the replication fork (the "fork" opens up as elongation moves towards it)
B - the DNA template is READ in the 3' - 5' direction, but it is BUILT in the 5' - 3' direction
C - Okazaki fragments are only made on the lagging strand (because it is hard to make the DNA on that strand
D - YEP
E - Absolutely requires a template strand (otherwise we wouldn't exist!)
The elongation of the leading strand during DNA synthesis occurs in the direction away from the replication fork and depends on the action of DNA polymerase.
Explanation:The elongation of the leading strand during DNA synthesis occurs in the direction away from the replication fork, which is option A. Option B is incorrect because DNA polymerase reads the template strand in the 3' to 5' direction and adds nucleotides only in the 5' to 3' direction. Option C is incorrect because Okazaki fragments are produced during replication on the lagging strand, not the leading strand. Option E is also incorrect because the leading strand does require a template strand. The correct answer is option D, which states that the elongation of the leading strand depends on the action of DNA polymerase.