A heterogeneous mixture composes of non- uniform components, so the concrete would be the answer, because you can tell the components from one another.
The answer is A, population growth increases .
—Explanation—
•] The definition of limiting factor; anything that constrains a population's size and slows or stops it from growing.
•]Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources.
•] So if the limiting factor is removed then the population begins to expand due to not having a factor that limits each species quantity.
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The cell is considered to be the most basic living unit.
Answer:
Spinach is the most nutrient dense green out there.
I know this because I learned it.