Answer the following question given this paragraph: Skin is made up of two layers, the epidermis and the dermis. 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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Answer the following question given this paragraph: Most muscles are skeletal muscles, which are attached to bones by tendons. Skeletal muscles work in pairs to move bones back and forth at joints. Q: By what are skeletal muscles attached to bones? Choices: - joints - ligaments - veins - tendons A:
tendons
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Answer the following question given this paragraph: Scientists measure the gases that escape from a volcano to predict eruptions. Gases like sulfur dioxide (SO 2 ), carbon dioxide (CO 2 ), hydrochloric acid (HCl), and water vapor can be measured at the site. Gases may also be measured from satellites. The amounts of gases and the ratios of gases are calculated to help predict eruptions. Q: Scientists measure the gases that escape from a volcano to predict what? Choices: - storms - floods - snowfall - eruptions A:
eruptions
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Answer the following question given this paragraph: 22.11.4 Chryosophytes Chryosophytes are the most abundant unicellular algae in the oceans. They are also one of the biggest components of plankton, a free-floating collection of microorganisms, eggs, and larvae. As photosynthetic organisms, they produce a significant amount of atmospheric oxygen. The reproduction cycle of chryosophytes is particularly interesting. Note that diatoms reproduce both asexually and sexually. Since diatoms have a rigid cell wall with an outer layer of silica (found in sand and glass), the daughter cells produced by mitosis must fit inside the original cell wall. Therefore, each generation of diatoms is smaller than the one before. The reduction in size continues until the diatoms produce sexually, producing a zygote which eventually grows to the original size as it matures. Q: What are the most abundant unicellular algae in the oceans? Choices: - chlorella - sporozoans - staurikosaurus - chryosophytes A:
chryosophytes
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