Q: What kind of relay occurs between the uterus, hypothalamus, and the posterior pituitary to assure an adequate supply of the hormone oxytocin during childbirth? Choices: - pressure feedback - affirmative feedback - currents feedback - positive feedback A:
positive feedback

Q: The simplest system is that of contractile vacuoles present in what? Choices: - parasites - macroorganisms - crystals - microorganisms A:
microorganisms

Q: Rise divided by run is called what? Choices: - hill - steep - mound - slope A:
slope