Http://www.pbs.org/wgbh/nova/cancer/folkman.html
I believe this website will help :)
Answer:
The goal of materials engineering is to predict and control material properties through an understanding of atomic, molecular, crystalline, and microscopic structures of engineering materials
Answer:
As a metabolic heat.
Explanation:
The loss of energy from one trophic level to the next in a food chain occurs because energy is lost in the form of heat when the organisms from one trophic level are consumed by organisms from the next level. Only 10% of energy is transferred from one trophic level to another while the remaining 90% energy is lost in the form of heat energy in the ecosystem.
There are only so many resources that can be used and if all of them are used they don't have enough materials or food.