He definition of mutation is "any heritable change in the genetic material." the qualifier "heritable" is necessary because

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

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.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.