Answer:
My answer is C.
Explanation:
Because only plant cells have cell wall.
I think the answer is how much money has been spent to fight the diseases caused by the mosquitos
Answer:
A. 20
Explanation:
Truth is its actually 22.5 but including that you can just round it, 20 is the best answer.
Abiotic factors are things that aren't living that effect an environment, like pH (how acidic the soil is), the temperature, amount of light, and so on. These can effect a population by making it more difficult to survive, perhaps creating more competition over available resources and so on. So for example, if the soil is really acidic in an area, a population of plants may not be able to grow well in that environment.
