C. according to Earth's existing magnetic field.
The answer is: <span>A- Genes for body and wing size were on the same chromosome and inherited together</span>
A) weapons for an evolutionary arms race w/ disease causing organisms
Answer:
Variations are caused by mutation. random mating between organisms.
Explanation:
In active transport, materials move from an area of high concentration to an area of lower concentration (goes down the concentration gradient) and it requires or uses energy in the form of ATP (adenosine triphosphate)
