Q: The marsupial embryo is nourished inside the uterus with food from a yolk sac instead of through a what? Choices: - stomach - ovum - umbilical cord - placenta A:
placenta
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Q: Scientists perform experiments to test their hypotheses because sometimes the nature of natural universe is what? Choices: - become obvious - very obvious - this obvious - not obvious A:
not obvious
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Q: What type of doctor specializes in the laboratory detection of disease? Choices: - internist - diagnostician - infectious disease physician - pathologist A:
pathologist
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Q: Within the microsporangium, the microspore mother cell divides by meiosis to give rise to four microspores, each of which will ultimately form this? Choices: - zygote - sperm cell - ova - pollen grain A:
pollen grain
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