Hi!
The answer is <span>D. Epinephrine widens the air passageways in the lungs.
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-Payshence xoxo
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Answer:
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
Explanation:
Answer:
Reptiles have dry, tough skin covered in scales, Reptiles breathe using lungs. Reptiles’ kidneys concentrate urine. Young reptiles develop inside an amniotic egg.
Explanation:
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It would be osmosis because osmosis is the diffusion of water through a selective membrane.