Imagine a population of rabbits in which most of the rabbits are brown all year. Then a mutation occurs, and one rabbit is born with a coat that turns nearly white in the winter. How might this white coat present an advantage to the rabbit? A. The white coat would help the rabbit stay warmer than a brown coat.
B. The white coat would help the rabbit hide from predators when snow fell during the winter.
C. The white coat would help the rabbit attract a mate more easily than a brown coat.
D. The white coat would help the rabbit stand out against the greens and browns of summer foliage.

thymine. in rna, thymine is replace by uracil

the most logical answer would be a

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."