Answer:
D. Solid Ice Crystals
Explanation:
"Cirrus clouds are wispy, curly, or stringy. They are found high in the atmosphere—typically higher than 6,000 meters (20,000 feet)—and are usually made of ice crystals." -National Geographic
Answer:
Unstable membrane potentials
Explanation:
Blood vessels expand during hot weather and retract/ tighten in cold weather
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Answer: There are a bunch, but chocolate/cacao is a main one!
Explanation: Hope this helped :)
