If legumes require water for survival, then what requires water for survival? Answer choices: - cows - pigeons - hydrogen - legumes - vacuums - bears - cats - outer space
legumes
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If active immunity results when an immune response to a germ produces memory cells, then active immunity is when an immune response occurs after a germ produces what? Answer choices: - harmful substances - bioaerosols - rapid expansion - Allergies - anemia - it needs them - Chemical energy - memory cells
memory cells
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If electron microscopes are used for seeing very small things and magnifying them, then electron microscopes are used for seeing very small things and doing what? Answer choices: - making them small - observe it - duplicate itself - making them tiny - making them invisible - rays or beams - magnifying them - major threat to health
magnifying them
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If ancathostegs have four limbs, then what do ancathostega have four of? Answer choices: - Eggs - feet - Wings - alveoli - Lungs - ovaries - rings - Limbs
Limbs
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