Cell theory establishes which of the following conclusions about cells?

A) all cells have the same size and shape

B) all cells form by free-cell formation

C) all cells are produced by other living cells

D) all cells have a cell wall

Solid rock that is exposed to extreme temperature, pressure, or chemical fluids becomes ...

Which statement about ecosystems is true? A. Ecosystems are always a few square meters at most. B. Ecosystems are exactly one square kilometer. C. Ecosystems are always larger than a biome. D. Ecosystems are always smaller than a biome.

One who studies mankind and its development from primitive cultures is a (an) a. botanist. B. astronomer. c. geologist. D. anthropologis

How does the muscular system work with the nervous system?

Why doesn't asexual reproduction result in variation among offspring and parents?

What is the best explanation if the gel of your PCR product shows smeared bands of multiple sizes? Select one: a. Non-specific gene amplification b. Primers hybridizing with one another c. Your isolate was not from a single bacterial colony d.

Explain how the circulatory system of cephalopods is different from that of other mollusks

Why can you not see the nuclear membrane and the nucleolous during the division of a prokaryotic cell

Where is water stored in the environment?

A nurse is instructing a patient receiving a cholesterol-lowering agent. which information should the nurse include in the patient education?