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Phoenix [80]
3 years ago
5

What statements are true about the biological macromolecules?

Biology
1 answer:
Andrews [41]3 years ago
7 0

Answers:

A. All biomolecules could be called carbon based molecules

B. The monomers of DNA are nucleotides

E. Cells membranes are made, in part, from phospholipids

F. The monomers if starch are monosaccharides

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Medulla oblongata

Explanation:

Medulla oblongata is found at the lower half of the brainstem continuous with the spinal cord. The medulla oblongata controls the center of vomiting, vasomotor centers for regulating heart rate, cardiac, respiratory and blood pressure. Furthermore, Medulla oblongata connects the higher levels of the brain to the spinal cord and also controls autonomic functions.

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The function of a root hair is to View Available Hint(s) The function of a root hair is to increase the surface area available f
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The function of a root hair is to increase the surface area available for absorption in plant roots

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Root hairs are located mostly near a plant's root tips. Most water absorption occurs through the root hairs due to its large surface area for absorption of water. The root hairs acts as a protective mechanism to prevent harmful bacterial organisms from infecting the plant via the xylem vessels.

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3 years ago
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Answer:

4

Explanation:

Producers are at the bottom of the energy pyramid because they prove the most energy, they make up most of the population, which is biomass. And the producers have the largest population, which is why they are at the bottom of the pyramid of numbers. Finally they are at the bottom of food chains and webs because they store the most energy inside of them.

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3 years ago
Olympic athletes train in Colorado Springs, Colorado because this location is at high altitude and near the 14,000 foot Pikes Pe
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A: Oxygen levels are low and, therefore, more red blood cells are produced, giving the athletes an advantage when competing at lower altitudes.

Explanation:

<em>At high altitudes, the partial pressure of oxygen is lower compared to lower altitudes</em>. The body system try to adjust to lower oxygen level by undergoing several physiological changes. Depending on the duration spent in high altitude, the body can either try to adjust in the short term or acclimatize for a longer term.

One of the processes the body undergoes during acclimatization is an increase in red blood cell production. The kidney secretes erythropotein in response to inadequate oxygen in body tissues, and this makes the liver to increase erythrocyte production.

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The correct option is A.

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Some vitamins are mostly found in animal-based foods, while some vitamins are abundant in plant-based foods. The best source of
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I did this for my test and had them correct

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