Which of the following statements is considered incorrect? select one: a. if all the enzymes that a cell will possibly need are produced all the time, then a cell will waste a lot of energy. b. the transcription of beta-galactosidase is regulated by the presence or absence of lactose in the environment. c. when lactose is present, it binds to the repressor region of the lac operon, thereby causing a conformational change of the repressor and making it fall off from the operator region. d. lactose is the only energy source that bacteria can utilize. e. the enzyme beta-galactosidase catalyzes the hydrolysis of lactose into galactose and glucose.

d. Lactose is the only energy source that bacteria can utilize. Brainliest I Need One More Please

Explanation:

b, acidosis

acidosis is when the human body attempts to return the bloods ph levels back to normal when the blood is acidic

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: