The understanding of ecology shows the interaction of the organisms among one another. One organism is dependent on the organism for various things such as food, mating, shelter and other things.
This understanding will help the scientist to draw a model in which he will show the interaction among organism.
In food web one organism feeds on the other one and there are various options available for the animals in the food web.
Its been used by humans to take the best traits from a species and pass them on like bigger bodies in cows for more meat and bigger muscles in horses for faster racing potential.
because it is hard to breakdown fat in a very short time while ATP can be broken down in a very short time.Fats have a very strong bond of molecular chains and this makes it hard to breakdown quickly