Dna is double stranded due to interactions between adenine, cytosine, guanine, and thymine, which are a) phosphates.
b) sugars.
c) bases.

What is a group of organisms that are closely related and share similar characteristics

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.

10 points a population of mice have tails. over time those mice with either really short tails or really long tails have a higher rate of survival. this will probably lead to what type of selection? a. disruptiveb. directionalc. stabilizingd. evological