Ques:Q: What type of lipids contain the element phosphorus, carbon, hydrogen and oxygen? Choices: - filaments - eukaryotes - alleles - phospholipids A:

Ans:phospholipids
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Ques:Q: Cancer occurs most often in adults over what age? Choices: - twenty - thirty - seventy - fifty A:

Ans:fifty
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Ques:Q: Of the four main wobble base pairs, guanine is paired with what? Choices: - thymine - cytosine - adenine - uracil A:

Ans:uracil
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Ques:Q: Reptiles and birds are the only known living descendants of what? Choices: - mammals - fossils - dragons - dinosaurs A:

Ans:
dinosaurs
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