Answer:
The cell organelle stores water for plant cells is vacuole.
Answer:
The independent variable are the vitamins .
The dependent variable are the rats.
Explanation:
The vitamins are the independent variable because they are are controllable. You can control how many vitamins the rats will be given.
Answer:
D: A density-independent factor.
Explanation:
An earthquake is a density-independent limiting factor
Darwin noticed that there were different kinds of the same species. For example, he studied four different kinds of finches. Each one had a different beak and are different kinds of food. This was the first time genetic diversity had been so obvious to humans.