How might a substitution mutation affect a person's traits
a. by stopping dna from replicating
b. by prevention ribosomes from synthesizing proteins
c. by changing the number of chromosomes a person has
d. by causing a change in the protein that forms during translation

The model illustrates a process by which a substance is taken up by a cell

What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder

In the water cycle , when does water undergo a chemical change