What is the difference between facilitated diffusion and active transport? Facilitated diffusion uses ATP and moves substances with the concentration gradient; active transport does not.

Active transport uses ATP and moves substances against the concentration gradient; facilitated diffusion does not.

Active transport uses ATP and does not require a carrier protein; facilitated diffusion does neither.

Facilitated diffusion uses ATP and requires a carrier protein; active transport does no

Active transport uses ATP and moves substances against the concentration gradient, facilitated diffusion does not

Explanation:

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?