Which is the correct zooplankton size variation from smallest to largest? a. microplankton, nanoplankton, picoplankton, mesoplankton b. megaplankton, picoplankton, microplankton, nanoplankton c. nanoplankton, mesoplankton, megaplankton, picoplankton d. picoplankton, nanoplankton, mesoplankton, macroplankton

The following image is of a diatom. it lives in water and gets food from photosynthesis. it is encased in a hard shell made of something similar to glass or sand . a diatom is a(n) because it has a) multi-celled organism; specialized parts. b) vertebrate; a skeleton. c) insect; an exoskeleton. d) single-called organism; only one cell.

Cells destroy body cells infected by a virus or bacteria.

Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above