The air in a scuba tank is composed of approximately 78% nitrogen, 21% oxygen, with the remainder being a mix of argon, carbon dioxide, neon, helium and others. What is the solvent?

What are the three solutes?

relationships play a major role in a human's emotional and mental wellbeing. healthy relationships with the people around you are even linked to a smaller production of cortisol, a stress hormone.

answer: c

explanation:

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands