If a sperm cell contains 8 chromosomes, it comes from an animal that has chromosomes. A. 4
B. 8
C. 12
D. 16
E. 24

dna is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.