All cells have similar structures, including
a) a plasma membrane
b) vacuoles
c) cellwall
d) cytoplasm
e) chloroplasts
f) protoplasm

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water