Answer:
Plants are valuable since they provide our food, materials for shelter, and purify the air (photosynthesis).
Animals such like livestock, supply us with food, fiber and leather.
The Endangered species act can help a local economy because it helps to supply clean air and pure water. It also protects our natural supplies.
Answer:
The answer that would NOT be correct is the last one , (Ecosystems that have more energy at higher trophic levels than at lower trophic levels. )
Answer:
ATP, water and carbon dioxide are produced.
Answer:
The right atrium takes blood from the veins and pumps it into a ventricle
Please mark as brainliest
Answer:
True; all cells in a mature embryo can develop into muscle.
Explanation: