Q: At what point can nutrients enter or exit an ecosystem? Choices: - Largest Population Point - Longest Point - Hottest Point - any point A:
any point

(Question)
Q: The angle of refraction depends on the index of what? Choices: - frequency - vibration - reflection - refraction A:
(Answer)
refraction

Ques: Q: The hypothalamic releasing and inhibiting hormones are secreted near capillaries at the base of the what? Choices: - lungs - hippocampus - pancreas - hypothalamus A:
Ans: hypothalamus

(Q).
Q: Niche and habitat are concepts related to what broader term? Choices: - population - biome - community - ecosystem A:
(A).
ecosystem

Ques:Q: The mars rover collected round clumps of crystals that, on earth, usually form in what? Choices: - rocks - volcanoes - air - water A:

Ans:water

Q: What substances serve as catalysts in most of the biochemical reactions that take place in organisms? Choices: - hormones - carbohydrates - iseotrops - enzymes A:
enzymes