A gated channel in a cell membrane allows

A. osmosis.

B. simple diffusion.

C. active transport.

D. facilitated diffusion.

What 6 carbon sugar serves as the primary fuel for metabolism in all living things?

Which scientist proposed the idea of studying humans as groups rather than as individuals? A. Lamarck B. Darwin C. Malthus D. Linnaeus

Consider cyclohexane. which position, equatorial or axial, can accommodate large groups with less steric hindrance

Can an ecosystem support an infinite number of deer? Why or why not

What is the reason that diaphragms have a relatively high failure rate?

This causes substances to move across the cell membrane, against the concentration gradient. Select one: a. active transport b. neutral transport c. passive transport d. hydrophobic transport

1. The nerve impulse is an electrical current that travels along dendrites or axons. True or false

What led to the conclusion that single-celled prokaryotic organisms evolved in the absence of oxygen

What happens when you touch something too cold?

It is important for a plant to make a hormone that keeps its seeds dormant. what do you think is the reason?