Mammals that lay eggs are termed.
a) monotermes
b) marsupials
c) placentals
d) bird like

According to the cell theory, which describes cells? a. all organisms are composed of multiple cells. b. all cells have the same structure and function. c. cells are found in everything on earth. d. living organisms are not created spontaneously

About __ of the mass of the cell is water

Adding more tributaries to a local river basin can have what effect?