An ecosystem is represented below. Key
A lege e e e e u sees
= Ocean surface
e
= Algae and
seaweed
co
जीनि
= Fish
= Mud and
sediments
The organisms represented as feet are found in the area shown due to which factor?
pH
B. sediment
C. light intensity
D. colder temperature

C. Light intensity

Explanation:

they need light to grow so they stay near the ocean surface because that's where the most light is

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: