A dad is someone who want to catch you before you fall
But instead place you up
Brushes you off
And let's you try again

A dad is someone who
Want to keep you away from making mistakes
But instead let's you find your own way
Even though his heart breaks in silence
When you get hurt

A dad is someone who
Hold you when you cry
Scold you when you breaks the rules
Shines with pride when you succeed
And has faith in your even when you fall​

don't know

you may really love your dad

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:

i thinking chemical change