Q: Q: In science, we need to make observations on various phenomena to form and test what? Choices: - assumptions - theories - variations - hypotheses A:
A: hypotheses

Q: Q: What regulates homeostasis and basic survival behaviors? Choices: - hippocampus - mitosis - cell membrane - hypothalamus A:
A: hypothalamus

Q: Q: What is the term for the energy of motion, which is exhibited by the speed of an object? Choices: - inertia - mechanical energy - residual energy - kinetic energy A:
A: kinetic energy

Q: Q: When do end portions of two nonsister chromatids trade places? Choices: - never - at night - during respiration - at every crossover A:
A: at every crossover