The weight of the body is supported by structures made of

Although animals share many common characteristics, there is also a great amount of diversity found in animals. which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water?

The breakdown of peptides into amino acids is an example of . the release of insulin after eating a large meal is an example of .

Why is it important for health care professional to stay informed about new development?