Q: What are the two layers of the skin? Choices: - dermis and epithelial - sebaceous and salivary - epithelial and endometrial - epidermis and dermis A:
epidermis and dermis
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Q: By what are skeletal muscles attached to bones? Choices: - joints - ligaments - veins - tendons A:
tendons
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Q: Scientists measure the gases that escape from a volcano to predict what? Choices: - storms - floods - snowfall - eruptions A:
eruptions
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Q: What are the most abundant unicellular algae in the oceans? Choices: - chlorella - sporozoans - staurikosaurus - chryosophytes A:
chryosophytes
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