<span> the time period in which an embryo develops</span>
The answer is D. Mutualism
The cell goes in a "dormant phase". A good example is the neuron. Neurons are very metabolically active but they don't divide so they go into a phase that doesn't include growth or replication of genetic material.
Animals storing energy is a long term cause when an animal is wanting another animal their is things that do change in their bodies and it can cause them to do theses kinds of things .
B.
The Hardy-Weinberg equilibrium states that the genetic variation stays constant
