Natural selection natural selection allows only the better alleles to be passed onto the next generation. 9. do you agree or disagree with the above statement? why or why not? state your position and provide two reasons to support your answer. keep your answer under 150 words.

The rate at which molecules water and oxygen can enter a cell is determined by the-

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.

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion