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:
terrestrial ecosystems

Q: The part of the ecosystem required by a particular species is endangered when human activity threatens loss of what? Choices: - primary producers - primary speciation - biodiversity - habitat A:
habitat

Q: Q: Making associations between experiences is often a part of what activity? Choices: - dying - eating - sleeping - learning A:
A: learning

Question: Q: What is the largest of the sinuses? Choices: - Maxillary sinus - Sphenoid sinus - Frontal sinus - superior sagittal sinus A:
Answer: superior sagittal sinus

*Question*
Q: Mount kilimanjaro has ________ climates at the top and bottom? Choices: - dangerous - similar - rainy - different A:
**Answer**
different

(Question)
Q: In an electromagnetic wave, what do the crests and troughs represent? Choices: - vibrating fields - ocean waves - particles fields - oscillating fields A:
(Answer)
oscillating fields