Ques: Q: Nitrogen is an important macronutrient because it is part of nucleic acids and proteins. atmospheric nitrogen, which is the diatomic molecule n2, or dinitrogen, is the largest pool of nitrogen in these? Choices: - gas planets - desert biomes - aquatic ecosytems - terrestrial ecosystems A:
Ans: terrestrial ecosystems

Ques: Q: When light strikes the rods and cones, they hyperpolarize, shutting off their release of what? Choices: - enzyme - vitreous fluid - dopamine - glutamate A:
Ans: glutamate

Ques: Q: When you are walking on a sidewalk, what occurs between your shoes and the concrete each time you put down your foot? Choices: - movement - progress - grip - static friction A:
Ans: static friction

Ques: Q: Polychaetes make up a large and diverse group. which category do the majority of these worms fall into? Choices: - carnivorous - terrestrial - amphibian - marine A:
Ans:
marine