Students who major in zoology spend a lot of time outdoors studying animals and their habitats. They also study the effects of humans on animals' environment and how to lessen these effects. Some jobs in zoology require an associate or a bachelor's degree, while others demand a degree that takes longer to obtain.
Every living organism needs a home, shelter or environment that provides the safety, ideal emperature and basic things it needs to survive. more science lessons: Asexual Reproduction
Why do we need food additives? Home â Additives â Why do we need food additives? In the distant past, we ate food that was raw or freshly cooked from ingredients that had been caught, grown or foraged. Slowly, people began to realise that by dividing labour, life would be easier for everyone.