Answer:
3. As a place for plants and crops to grow
4. As a material to clean and smooth skin
5. As a building material for homes and buildin
<span>A: The proportions of a population that are at different age levels make up the population’s age structure. </span>
Answer:
A. An increase in nutrients
Explanation:
By definition, eutrophication is excessive richness of nutrients in a lake or body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen.
Answer: One way of creating a variation in a population is through genetic replication errors. This will make a new type of alleles. Environmental factors cause variation such as affecting enzyme activity and function. The changes would show in the phenotype of an organism.
Explanation: thus is one way ik for sure another way idk srry
