Answer:
They are necessary for co-ordination.
Explanation:
The both systems brings about co-ordination, thought there are some basic differences between them. Many organs in an animals system have organs to carry out activities like locomotion, digestion, respiration and excretion. The activities of each organ system must be co-ordinated with those of other systems; and with conditions in the external and internal environments of the animal.
Unlike the endocrine system, the nervous system works rapidly. Messages are carried mainly as electric impulses along nerves triggering immediate response from target organs.
The hypothalamus is the important link between these two systems.
Answer:
O, Assimilation
Explanation:
Assimilation is when cells take in things to use them as an energy source. So naturally assimilation is the answer.
Hope this helps!
In chemistry, a valence electron<span> is an </span>electron<span> that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond, both atoms in the bond contribute one </span>valence electron<span> in order to form a shared pair.</span>
Genetic drift= Evolution that occurs as a result of chance events.
B.
<span>A decrease in plant life would cause carbon dioxide levels to increase and oxygen levels to decrease.</span>
