What are
hollow tubes of protein that maintain cell shape and permit movement of cell organelles.

Astudent is working on an experiment to study the cooling curve of water. during the experiment, a beaker containing hot water falls to the floor and is shattered. the student’s immediate response should be to

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.