Cells divide to make new cells. Which part of the cell theory best relates to the above statement?
a
b
O O O O
Cells can only be seen using a microscope.
Cells come from preexisting cells.
Cells carry out similar functions.
Cells are the basic unit of life.
C
d

Which of the following represents a negatively charged ion? of t 7

For each of the following, decide whether the statement describes photosynthesis, cellular respiration, or both. releases energy in the form of atp. stores energy in glucose molecules. performed by producers. performed by consumers.

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.