Q: Simple eyes, like the human eye, have how many lenses? Read this paragraph and choose the correct option from the provided answers: The head generally has several simple eyes and a pair of compound eyes. Simple eyes have a single lens, like the human eye. Compound eyes have many lenses. Choices: - two - none - four - one A:
one
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Q: Carbon-14 dating is a method of what kind of dating? Read this paragraph and choose the correct option from the provided answers: The best-known method of radiometric dating is carbon-14 dating . A living thing takes in carbon-14 (along with stable carbon-12). As the carbon-14 decays, it is replaced with more carbon-14. After the organism dies, it stops taking in carbon. That includes carbon-14. The carbon-14 that is in its body continues to decay. So the organism contains less and less carbon-14 as time goes on. We can estimate the amount of carbon-14 that has decayed by measuring the amount of carbon-14 to carbon-12. We know how fast carbon-14 decays. With this information, we can tell how long ago the organism died. Choices: - orbital - stratigraphy - metamorphic - radiometric A:
radiometric
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Q: The cochlea and vestibul make up what part of the ear? Read this paragraph and choose the correct option from the provided answers: Figure 14.5 Structures of the Ear The external ear contains the auricle, ear canal, and tympanic membrane. The middle ear contains the ossicles and is connected to the pharynx by the Eustachian tube. The inner ear contains the cochlea and vestibule, which are responsible for audition and equilibrium, respectively. Choices: - middle - upper - outer - inner A:
inner
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Q: Oceans are divided into zones bases on distance from shore and what other factor? Read this paragraph and choose the correct option from the provided answers: In addition to the amount of salts, other conditions in ocean water vary from place to place. One is the amount of nutrients in the water. Another is the amount of sunlight that reaches the water. These conditions depend mainly on two factors: distance from shore and depth of water. Oceans are divided into zones ( Figure below ) based on these two factors. The ocean floor makes up another zone. Choices: - temperature - salinity - animal species - water depth A:
water depth
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