3,000 kilijoules.
You go from 300,000 at the first trophic level to 30,000 at the second trophic level, and finally 3,000 at teh third.
Answer:
Cell is the smallest and function unit of living organism.
Explanation:
It is the basic unit of life.
1. Scientists may want to get a better understanding of the natural world.
2. They want to gather more data, info, etc about a certain topic.
3. They may want to make predictions and give explanations about a topic.
They can repair damaged immune systems and they make replacement heart valves.