4. describe the steps that happen during interphase.
5. describe the steps that happen during mitosis
6. what is it called when elements cross the cell membrane performs a high concentration to low?
diffusion
7. list all passive transport.
8. list all active transport.

Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.

An organism lives in a container with very little oxygen. it produces ethanol and carbon dioxide as waste products. which process does it use to produce most of its atp molecules? a. lactic acid fermentation b. glycolysis c. electron transport chains d. alcohol fermentation

Which of the following factors would not contribute to allopatric speciation? a) the isolated population is exposed to different selection pressures than the ancestral population. b) a population becomes geographically isolated from the parent population. c) gene flow between the two populations is extensive. d) the separated population is small, and genetic drift occurs. e) different mutations begin to distinguish the gene pools of the separated populations.