PLS help which activity produces an action potential in nerve cells? A. mitosis
B. hormone secreation
C. release of neurotransmitters
D. exchange of ions

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees