A gated channel in a cell membrane allows

A. osmosis.

B. simple diffusion.

C. active transport.

D. facilitated diffusion.

What orgenelles undergo cellular resperation

Some forms of polyethylene are relatively soft, much like paraffin wax. other forms of polyethylene are very hard and rigid.

You are studying a cell line in in which one cell cycle takes approximately 24 hours. You perform FACS analysis on a population of your dividing cells.

What is the Y shaped region that results when the DNA molecule separation

An increase in which sound wave characteristic would result in an increase in loudness? a. speed b. wavelength c. amplitude d. period

What would mostly likely happen to a person who is not getting enough essentials amino acids in his or her diet

Which part of the nervous system would carry messages from a person's sore knee to alert him or her to stop running and rest?

Which of the following describes a high-intertidal zone A: completely absent of sunlight B: the intertidal zone only cover by high tides C: the area of lowest elevation in ocean tidal zones D: the first 600 feet of depth in the open ocean

Animal behavior Essay

Which term best describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable? A) conclusion B) experiment C) hypothesis D) prediction