Which of these examples demonstrates metabolism?
a.
a person eats a large dinner for digestion and energy.
b.
a human's skin has the ability to tan in the sun.
c.
a person puts on socks because his feet are cold.
d.
a dog gets sick and its immune system fights the disease.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

what school and grade?