Answer:
The right answer is A
Explanation:
Because animals take in sugar and oxygen, break them down and release carbon dioxide and water along with ATP as usable energy.
<span>Animals and plants have cells that are specialized by the process of differentiation.</span>
The question is; would a drug that binds irreversibly to these receptors be an effective contraceptive in mammals?, the answer is;Yes; because if the receptors are blocked the sperms will not be able to penetrate the zonal pellucida of the egg. Contraceptives prevents pregnancy by interfering with the normal process of ovulation, fertilization, and implantation.
C. 11 is your answer
1) integumentary
2) muscular
3) skeletal
4) nervous
5) circulatory
6) lymphatic
7) respiartory
8) endocrine
9) urinary/excretory
10) digestive
11) reproductive
hope this helps
Answer:
A. A pairs with U
Explanation:
In DNA, the nitrogenous bases are A, T, G, and C. In RNA, the nitrogenous bases are A, U, G, and C.
A pairs with U in RNA because it requires less energy to use uracil over thymine.
Hope that helps.
