Answer:
A
Explanation:
Because chemosynthesis is the biological conversion of one or more carbon-containing molecules and nutrients into organic matter using the oxidation of inorganic compounds or ferrous ions as a source of energy, rather than sunlight, as in photosynthesis. So it can only be this because decomposition is something decaying and cellular respiration is the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
The two species probably had a common ancestor, but split and changed from evolution.
When a person is hot, the blood vessels in the dermis dilates, in order to maintain the homeostasis. When the temperature is increased, it becomes necessary to lose the body heat. This increased heat is lost by rushing the blood to the vessels present in the dermis layer. These blood vessels dilates so that more blood can flow inside these and the heat can be lost.
hence, the blank can be filled with 'dilate'.
Its a bone that perfects your brain and it keeps it in place
