The kidneys, which remove dissolved wastes from the blood, are organs of the:
(1) endocrine system (3) skeletal system
(2) excretory system (4) nervous system

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

What form of anesthetic was used for field surgery

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture