Answer: forms a complete organism
Explanation:
Answer:
possibly depending on what you want
Explanation:
I am not sure, but to me it sounds that this is important because human populations are sometimes concentrated in areas that are lacking resources. Although, all of the given options may be correct.
Answer:
The correct answer will be option-E.
Explanation:
Chordae tendinae are the string-like structure in the heart which is composed of dense regular connective tissue called collagen and elastin proteins. They arise from the papillary muscles of the heart and branches out in the ventricle portion of the heart.
These play an important role in the closure of the AV valves to prevent the backward flow of the blood to the atria during ventricular contraction by holding cusps of the valve into the dome-shaped structure.
Thus, option-E is the correct answer.