Answer:
Before meiosis actually begins, the DNA that is packaged into chromosomes must be fully copied.
The answer should be A. A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
A population is essentially just a collection of all living things in one category. People are one population, insects are another, etc. Communities are "more organized" populations. Soccer players hang out with soccer players, spiders hang out with spiders. We split into "our people" within our population.
I know that may be a little confusing, but if you have anymore questions feel free to ask. I hope I was able to help. Best of luck!
Answer:
causes alteration
Explanation:
when one particular species that should perform a particular function is removed it will change the ecosystem
