C. calcium is your answer
The Endocrine System. As noted earlier, the endocrine system is not a part of the nervous system, but it is still essential to communication throughout the body. This system is composed of glands, which secrete chemical messengers known as hormones.
Answe: Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations. Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment. A mutation is an alteration of the DNA sequence.
Explanation:
Answer:
it should be G-G-A-G-C-T-A-A-G-T-G-C
Explanation:
A=T
C=G
think of them as opposites. invert them and you'll have the answer (its easier if you write the answer right underneath)