Which molecule in the chloroplast of a plant cell first captures light energy from sunlight?
a. glucose
b. carbon dioxide
c. chlorophyll
d. adenosine triphosphate

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight. which of these is most likely effect on the ecosystem?

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow