Insulin is a hormone that regulates blood glucose levels. Insulin is composed of polypeptide chains--therefore, insulin should be identified as a(n):. Protein
Carbohydrate
Lipid
Nucleic acid

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

The term equestrian relates to which animal? bulls cows horses pigs