For questions four plants make their own food which is oxygen gas. This oxygen gas, is an important part of the air, the gas that plants and animals must live on. When people breathe, it is oxygen that we take out of the air to keep our cells and bodies alive.
Answer:
A vacuole is used for temporary storage of water, waste products, food, and cellular material. ... Vacuoles are larger in plant cells than animal cells to store the water and other materials needed by the cell.
In summer the green pigment is more than in tall meaning that there is more chlorophyll produced in the summer than in the fall
Answer:
you should have skills of drawing observe the diagram
Answer:
B. Is what the scientists manipulate in the experiment.
Explanation:
The Independent variable is not dependent, or doesn't rely, on another variable in the experiment. So, it would make the most sense that they would manipulate the Independent so that they can watch and see how the dependent variable reacts to the manipulation, or the change, in the independent variable.