Q: What do most amphibians breathe with as larvae? Read this paragraph and choose the correct option from the provided answers: Most amphibians breathe with gills as larvae and with lungs as adults. Additional oxygen is absorbed through the skin in most species. The skin is kept moist by mucus, which is secreted by mucous glands. In some species, mucous glands also produce toxins, which help protect the amphibians from predators. The golden frog shown in Figure below is an example of a toxic amphibian. Choices: - pores - lungs - nasal passages - gills A:
gills
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Q: What system of the body is generally responsible for breathing? Read this paragraph and choose the correct option from the provided answers: The respiratory system is responsible for breathing. Choices: - excretory - integumentary - cardiac - respiratory system A:
respiratory system
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Q: When a solute dissolves into a solvent what is that called? Read this paragraph and choose the correct option from the provided answers: Enthalpy changes also occur when a solute undergoes the physical process of dissolving into a solvent. Hot packs and cold packs (see Figure below ) use this property. Many hot packs use calcium chloride, which releases heat when it dissolves according to the equation below. Choices: - solubility - viscosity - mixing - enthalpy A:
enthalpy
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Q: What three forces are involved in erosion? Read this paragraph and choose the correct option from the provided answers: Choices: - water, temperature, altitude - heat, pressure, gravity - radiation, gravity, precipitation - water, wind, gravity A:
water, wind, gravity
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