Which types of embryos have pharyngeal slits? a. fish, amphibians, reptiles, and birds b. fish and amphibians c. all chordates d. fish, amphibians, and reptiles

Which of the following conclusions can be drawn

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

Which describes a grizzly bear’s habitat?