Q: Insects can have specialized mouthparts, such as a proboscis, to siphon the nectar from what? Choices: - stems - shrubs - fruits - flowers A:
flowers
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Q: How many valence electrons does carbon have? Choices: - one - five - two - four A:
four
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Q: What happens when a neutral atom gains or loses electrons? Choices: - it loses protons - it gains protons - it loses neutrons - it becomes an ion A:
it becomes an ion
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Q: Like other amphibians, frogs generally lay their eggs in moist environments, which are required since the eggs lack what feature? Choices: - nucleus - tubes - membrane - shells A:
shells
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