What was charles darwin's major accomplishment?
a. he devised the theory of evolution.
b. he devised the theory of relativity.
c. he invented communism.
d. he invented the steam engine

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

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)

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other