Choose all the answers that apply.
communicable diseases
can be prevented through safe behaviors
nare inherited from parents
cannot be prevented through vaccination
can be spread from person to person
can be spread through contact with infected bodily fluid
neyt question
ask for

1) can be prevented through safe behaviour.

2)can be spread from person to person.

3can be spread through contact with infecetd bodily fluids

and some communicable disease caused by viruses can be prevented through vaccination but some not cannot

its d lol

; 0

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: