What happens in a male's body when he enters puberty? the testes start releasing testosterone. the testes start releasing progesterone. the ovaries start releasing testosterone. the ovaries start releasing progesterone.

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

People with one sickle cell allele are not likely to get malaria. what is this an example of?