Our atmosphere is composed of several gases. The name of the gas we breathe, O2, is A) dioxide. B) dioxygen. C) oxide. D) oxygen.

The answer is "D"

Explanation:

The gas in the atmosphere that we breathe is oxygen. The subscript 2 lets us know that oxygen is a diatomic molecule. That means oxygen goes around in pairs.

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one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.