Pros and cons of using science on classifying and
re-classifying species.

Science provide knowledge

Science can change with the passage of time.

Explanation:

The advantage of using science on classifying species is that the science provide knowledge about the characteristics of species so we can easily classify them on the basis of similarities and differences while, the main disadvantage of using science on classification of species is that the knowledge provided by science sometimes change with the passage of time because of new technology due to which we have to reclassify organisms.

i would say d

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: