Most copepods consume phytoplankton. Phytoplankton are photosynthetic. What is the
trophic level for these copepods?

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b.through genes c. through seasonal cycles d. through hibernation

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land