Which of the following statements is part of the cell theory?

All cells come from pre-existing cells.

All living things are made up of one or more cells.

Cells are the basic units of living things.

all of these

Which process does not occur in animal cells? A. respiration B. photosynthesis C. chemical reaction D. protein production

From which geologic era are fossils most commonly found?

Indicate why hapmap project is useful in diagnosing human disease

What is a food chain? Describe how the transformation of energy takes place within a food chain.

Depolarization of one group of smooth muscle cells rapidly spreads to other smooth muscle cells, leading to coordinated contractions. This electrical coupling is due to A. autocrine signaling B. paracrine signaling C. endocrine signaling D.

A desert would be an example of what type of climate? dry climate mild climate continental climate mountain area tropical climate

In the "analyzing the problem" step in the problem solving process, one should evaluate the causes, effects, and symptoms of the problem.

Why is bacteria alive?

Why don't scientists keep/collect everything they find?

If an organism with 52 chromosomes has a pair of sex determining chromosomes. How many autosome pairs would it have?