Q: What is the main component of phytoplankton? Choices: - sponge - coral - seawater - algae A:
algae
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Q: Which is larger: the human sperm or the human egg? Choices: - same size - zygote - human sperm - human egg A:
human egg
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Q: What is the rigid layer that is found outside the cell membrane and surrounds the cell? Choices: - cell barrier - cell shield - cell root - cell wall A:
cell wall
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Q: Transition metals are superior conductors of heat as well as what else? Choices: - light - radiation - cold - electricity A:
electricity
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