It is predators like snakes because predators keep the population control, without predators the population can go soo high that thers not enough food for all of the population. Then the population starts dyeing off.
Yes it is, an example is a group of animals not treated with it died, but the animals that were survived--
To familiarize students with experimental apparatus, the scientific method, and methods of data analysis so that they will have some idea of the inductive process by which the ideas were originated. To teach how to make careful experimental observations and how to think about and draw conclusions from such data.
<span>b. macronutrients and micronutrients.
Hope this helps!</span>