Every species relies on another in some way. Without one species another species wouldn't be able to survive.
If only one type of tree is planted in an abandoned field, the ecosystem will contrail<span> little genetic variability. This is not a healthy way of planting. This can lead to the total destruction of the trees. I hope that this is the answer that you were looking for and the answer has actually come to your desired help.</span>
Key is to lock as D. Substrate is to active site.
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.