A. The oxygen means it's a respiratory, and the hairs act to ensure no foreign contaminants make you sick.
Affects populations,
Occurs when there is genetic variation
Selects organisms with certain traits to survive.
6,02×10²³ * 3,2 = 19,264×10²³=1,9264×10²⁴
Answer:
has no volume and very low density relative to liquids and solids
has high kinetic energy between particles
Answer:
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