Ques: Q: In contrast to metals, electrical insulators are materials that conduct electricity poorly because their valence bands are what? Choices: - empty - large - half-full - full A:
Ans: full

Ques: Q: The maintenance of constant conditions in the body is also known as what? Choices: - consciousness - mononucleosis - hypothesis - homeostasis A:
Ans: homeostasis

Ques: Q: What three characteristics do waves have? Choices: - structure , refraction and deflection - theory , refraction and deflection - spin, refraction, and deflection - reflection, refraction and deflection A:
Ans: reflection, refraction and deflection

Ques: Q: What part of an animal helps to prevent water loss and gives support and protection? Choices: - membrane - cuticle - backbone - exoskeleton A:
Ans:
exoskeleton