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An element is a non-metal, is highly reactive, and is a gas at room temperature.
Which element has these properties?
O A argon (Ar)
O B. barlum (Ba)
OC carbon (C)
OD. fluorine (F)
O E tungsten (W)
RESET
Paige Lohnson

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?

Which is a kingdom? protistachordataprokarya mammalia