I’ll mark you brainliest if you get it right

When does dna replication(make a copy of itself)?

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.

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