The idea that organisms share conserved, core processes can be used as evidence to explain that all life shares a common origin. Which of the following describes evidence that supports this claim? A. All organisms have DNA and undergo cellular processes.
B. All organisms reproduce by carrying out sexual reproduction.
C. Cellular respiration takes place in the cell's mitochondria in all organisms.
D. DNA replication and repair takes place in the cell's nucleus in all organisms.

B is the correct answer.

Explanation:

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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:

there is no stairs in bungalow

explanation:

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