Q: Q: Many important crops, such as corn, are planted and harvested as what? Choices: - trees - cuttings - berries - seeds A:
A: seeds

Q: 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:
A: placenta

Q: Q: What can be used to mechanically separate the two elements by attracting the iron filings out of the mixture and leaving the sulfur behind? Choices: - centrifuge - laser - graduated cylinder - magnet A:
A: magnet

Q: Q: What type of planet is jupiter? Choices: - a noble gas - a phantom - a red dwarf - a gas giant A:
A: a gas giant