Answer:
A population changes in response to a change in the environment.
Explanation:
The changes in a population( variations) are due to changes in the environment. These variations confers an advantage to those individual possessing them. This enables such individuals to stand a better chance to survive in the struggle for existence. The better adapted individuals are able to survive and reach the reproductive age and pass over their favourable traits to their offspring.
Vacuole is needed in plant cells to store water, food and nutrients. It also does the job of getting rid of waste in the cell. Another function of vacuole is to provide structural support and protection of the plant cell.
Answer:
A food chain shows how energy flows from one organism to another. In general, energy flows from the Sun to producers and then to consumers. ... They get energy by eating grass and leaves. Energy may be lost in living systems as it flows through them.
Explanation:
There are 384 fluid ounces in 3 gallons. The teacher does not have enough for each student to have 12 fluid ounces.
384÷12=32
4 students would go thirsty.