Sponges can reproduce
a. by the budding of new sponges from the parent.
b. by a breakup of the original parent into fragments that each become a new sponge.
c. sexually, using the production of sperm and eggs.
d. all of the above

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water