Materials not required for the cell is given out by exocytosis. Waste materials, excess water and other undesirable substances are given out of the cell. Thus it helps in homeostasis
Answer:
Positive
Explanation:
Because there is no negative numbers in your equation and a positive times a positive equals a positive.
CLoud b would release rain because it is the first one to release heat.
I think the correct graph would have light intensity on the x-axis (because light intensity is the independent variable) and a measure of photosynthetic rate (either O2 evolution or CO2 consumption) on the y-axis (because the rate of photosynthesis is the dependent variable)... hope this helps