Which of the following is not a principle of natural selection? Most species produce more offspring than will actually reproduce.
Organisms compete for limited resources.
Evolution will occur as an organism gets older and learns more.
In every population, adaptations allows some organisms to survive and reproduce better than others.

the answer is b. 0; 4

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:

a compound light microscope is used to magnify objects in steps.  

hope it

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