Answer: Temperature. Light intensity. Carbon dioxide concentration.
Explanation:
Answer:
Nitrogen
Explanation:
All living organisms need nitrogen in order to build proteins and build DNA.
Some animals (most) get nitrogen by eating plants I believe.
Tina should think about results and why aspirin did not affect the growth rate of tomato plants. She may find the answer in literature or can apply the results on the new situation. She may change the hypothesis and alter some factors in the experiment to test the new hypothesis.
Answer:
Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. And most importantly decomposes make vital nutrients available to an ecosystem primary producers- usually plants and algae.