Answer:
Argon- a chemical element
Water- polar molecule
Nitrogen- chemical compound
Uranium- chemical element
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Explanation:
In conclusion B. water is a molecule
Answer:
B carbohydrates
Explanation:
Your cells convert carbohydrates into the fuel molecule ATP through a process called cellular respiration.
Answer:
D
Explanation:
The atmosphere is not an eycosystem
Answer:
waste of other animals,eating dead animals and plants
Gene duplication, mutation, or other processes can produce new genes and alleles and increase genetic variation. New genetic variation can be created within generations in a population, so a population with rapid reproduction rates will probably have high genetic variation.
