When does the cell have to use active transport?

a. when the cell has low energy

b. when the cell is in a highly concentrated solution

c. to move molecules across the membrane quickly

d. to move molecules across the membrane against a gradient

A population that meets the Hardy-Weinberg requirements for equilibrium will experience

What type of solution will lyse protoplasts (any cell, such as a plant, bacterial or fungal cell, that has had its cell wall removed) ?

What would happen if all of the genes in a cell were always active?

The Eustachian tube becomes longer, narrow, and more slanted during middle childhood, resulting in A) more frequent bouts of otitis media. B) higher rates of strep throat. C) lower rates of sinus infections. D) reduced incidence of otitis media.

Hummus is not an example of a melting pot food, but an? Culture Staple foods Celebrated Traditional

A nurse is caring for a client with hyperthyroidism. which laboratory test will be most beneficial in monitoring the effectiveness of drug therapy?

In X, the instructions on the DNA are copied and transcribed onto a molecule of Y RNA. Which terms correctly complete this statement? X: transcription Y: messenger X: translation Y: messenger X: transcription Y: transfer X: elongation Y: transfer

What is a characteristic of a Index Fossil

DNA encodes the information necessary to produce the proteins needed by your body. While this is true for humans, is it the case for other organisms? A) No, humans are the only species to use DNA.

Why is the symbol X avoided in algebra?