What is the difference between a theory that states that "all cells come from preexisting cells," and the 'theory' that "little green men live in outer space?"

While students are studying a rock outcrop along a highway, they discover a sedimentary rock layer that contains fish fossils.

Fructose is a molecule that can move across the cell membrane. if the concentration of fructose is higher outside the cell than inside the cell, then what will happen by the process of diffusion?

What type of joint is the hip joint? Describe the type (s) of movements this joint can perform.

If a substance decomposes, it has undergone: physical change chemical change phase change

Eukaryotic genome variation (check all that apply): a. Can include insertion and deletions of segments of DNA. b. At a chromosomal level may differ within a genus and drive speciation. c. Is very rare within a species. d.

Harmless bacteria are what type of bacteria? Milady chapter 5

Which kind of action is a cause of air pollution? A. Poisons are released into a major river. B. Gasoline is burned by a car engine. C. Trash is dropped in a national wildlife preserve. D. Tuna are fished to extinction.

Which questions can be answered using the scientific process

What Contains tube-like structures that carry water and nutrients

How does the polarity of water allow for life on Earth?