Answer :

Mutations that increase fitness is type of mutations do scientists look for in a molecular clock.

Answer:

1. species x and y

species a and b are more close

2. what type of mutations

mutations that have no effect on fitness

3.what do hox genes control

patterns of embryo

4. a scientist want to determine when lions and

ticks faster

5. the table above shows the effects difference in a particular

you can infer that b and c shared

Explanation: