Carbon atoms are very flexible and are very common in chemical reactions. It can form four different bonds with other elements. It also makes up 18% of the human body. Not only is it found in the human body, but it's found in every organism.
I hope this helps! If it's multiple choice let me know.
Answer:
B
Explanation:
I took the test on A P E X. I hope I'm not to late for the answer!
The answer should be that the energy is defined as the ability to do work.
<span>During respiration, cells use the simplest, digested form of carbohydrate foods, glucose, and produce energy from it. The reaction takes place in the presence of oxygen and its by-products are carbon dioxide and water. Therefore, the answer is the process where energy from food is used by the cell.</span>
Answer:
c. Directional selection
Explanation:
There are three types of selection: stabilizing, directional and disruptive. Currently seed cracker finches show disruptive selection with respect to bills. In disruptive selection two extreme phenotypes are preferred in population over the mean phenotype. Here either, small or large bills are beneficial for birds so it is an example of disruptive selection.
If due to some climatic change all seeds would become hard, it would be more beneficial for birds to have large bills. Slowly nature will select for birds with large bills rather than birds with small bills. The selection now will shift to directional selection since only one of the extreme phenotypes is being favoured.
