Select all that apply. natural selection 1).is random 2).favors organisms well adapted to the environment 3).cannot work if beneficial traits are not hereditary 4).is often called survival of the fittest

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 following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

The tubes transporting minerals and water upward are called ?