Eukaryotes are different than Prokaryotes, because only eukaryotes have: A. Organelles
B. Capsule
C. Plasma membrane
D. DNA

The influenza virus cause the flu, but not other diseases. why?

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?