Answer:
it's important function is to manufacturer Lipids
Answer:
b. a person has an emotional need for a drug
Answer:
Energy is said to flow in a "one-way stream" through an ecosystem. In your own words, describe what that means. Energy is not recycled. Energy enters an ecosystem and flows through a food chain, but it is not reused, it is lost as heat.
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Answer:
Because it is a solid that has trapped air with the water molecules in cold temperature thus creating a hard solid.
