Genetic variation<span> occurs </span>mainly<span> through DNA mutation, gene flow (movement of genes from one population to another) and sexual reproduction</span>
Answer:
The answer is B
Explanation:
New species often form on new islands because they evolve to fill new niches
<span>Adopt ecological conservation practices :)</span>
Answer : (D)
Explanation: Just as we communicate to each other to initiate a response, cells must also communicate. Of the 7 characteristics of life the characteristic that states a living things respond to their environment most closely relates why cell communication is important and it evolved
The answer is option B "declining number and variety of the species in an area." Biodiversity is a variety of life for example a ecosystem has many species which makes it a biodiversity. Now a loss of a biodiversity would be loosing a huge amount of species in that area or ecosystem which would mean the answer is option B.
Hope this helps.
