1 Letâs not forget estrogen, progesterone, and testosterone, also known as the minor hormones. 2  Adequate levels of estrogen seem to help in hunger regulation, simulating the soothing âfullâ or satiety effect of serotonin.
Education. To land an entry-level job, zoologists and wildlife biologists need a bachelor's degree in zoology, wildlife biology, ecology, animal science or environmental studies. Key classes include anatomy, wildlife management, cellular biology and ecology.ou donât need certification to become a zoologist or wildlife biologist, but you do need extensive education. Some trade groups offer optional certification for wildlife biologists who want to burnish their credentials.
Biologists must have a 4-year undergraduate degree, such as a Bachelor of Science in Biology, for entry-level research positions. A few classes you may take are microbiology, anthropology, biochemistry and molecular biology.iologists, or biological scientists, work with and research living organisms. As a biologist, you'll use your knowledge and research of living organisms to try to find out what they're composed of and their relationship to what's around them.