Which of the following forms a base pair with thymine?
adenine
deoxyribose
cytosine
guanine

What does gradualism and punctuated equilibrium have in common

Sarah is sitting at the top of the slide in the schools playground. which will increase sarah’s kinetic energy a- an additional child is added to the top of the slide. b- sarah is pushed and moves down the slide. c- sarah climbs down the ladder and off the slide. d- the ladder is moved to the other side of the yard.

How does natural selection change thephenotypes within a population over time?