Ques:Q: How are aquatic biomes often classified? Choices: - depth - amount of life - amount of light - amount of salt A:

Ans:amount of salt
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Ques:Q: When amino acids bind together, they form a long chain called what, which is an essential component of protein? Choices: - peptide - lipids - enzyme - polypeptide A:

Ans:polypeptide
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Ques:Q: What are the two divisions of vascular plants? Choices: - root and seed - seedless and semi-seeded - aquatic and terrestrial - seedless and seed A:

Ans:seedless and seed
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Ques:Q: Toward the late stages of pregnancy, a drop in progesterone and stretching forces from the fetus lead to increasing uterine irritability and prompt labor. contractions serve to dilate the cervix and expel this? Choices: - blood - tissues - uteris - newborn A:

Ans:
newborn
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