Approximately how many bacteria live in/on a human being

What is a moose's habitat? Select one: a. The number of moose in a given area b. its antlers c. The forests of North America d. The plants and fungi that moose eat

A group of AP biology students is testing the effect of temperature on catalase activity in cells. In cells, catalase breaks down hydrogen peroxide into water and oxygen gas. What is the substrate in this experiment?

Which of these developments is a positive effect of cell technology on society? A. New vaccines can be made quickly enough to stop epidemics. B. The ability to clone animals allows people to replace beloved pets. C.

Gram-positive bacteria have a thick cell wall that stain what color?

The variety of life across the biosphere is called what?

Which method of reproduction provides the most genetic variation

Using fossils, what can scientists most accurately determine about a mass extinction?

Snow has been lying mountainside. Suddenly, it starts to move down the mountain. Which types of friction are observed in this avalanche? Where does each type occur?

Which is a single ring nitrogenous base

The area of the A band in the sarcomere consists of O z line, H band, M line O M line, H band, zone of overlap KAN O thin filaments only O overlapping thick and thin filaments