A kind of fossil where an animal or plant leave only its body impression in the mud

How did the pressure change as the altitude increased?

A biologist examines a series of cells and counts 90 cells in interphase, 13 cells in prophase, 12 cells in metaphase, 3 cells in anaphase, and 2 cells in telophase.

What are three matrices in which organisms may become fossilized?

Most municipal sewage in the United States is subjected to

How does loss of biodiversity affect the biosphere

Chimpanzees reproduce sexually, and sponges reproduce asexually. What disadvantage do chimpanzees have compared to sponges

What is the immune system? A. The group of cells and organs that protect the body from disease. B. A group of cells that undergoes apoptosis to protect the body. C. A group of organelles that digest particles that invade the cells. D.

Seth runs up 3 flights of stairs. the first climbs takes him 12 seconds. his second climb takes him 15 seconds. Has the power done been affected?

What is the best description of a molecule

What are Designer Babies? What are the pros and cons?