Q: Q: What in the skin dilates, or widens, in order to increase blood flow to the bodys surface? Read this paragraph and choose the correct option from the provided answers: The skin helps maintain a constant body temperature. It keeps the body cool in two ways. Sweat from sweat glands in the skin evaporates to cool the body. Blood vessels in the skin dilate, or widen, increasing blood flow to the body surface. This allows more heat to reach the surface and radiate into the environment. The opposite happens to retain body heat. Blood vessels in the skin constrict, or narrow, decreasing blood flow to the body surface. This reduces the amount of heat that reaches the surface so less heat is lost to the environment. Choices: - veins - pores - tear ducts - blood vessels A:
A: blood vessels

Q: Q: What is earth's geographic north pole also called? Read this paragraph and choose the correct option from the provided answers: A compass needle lines up with Earth's magnetic north pole. This is different from Earth's geographic north pole, also called true north. The geographic north pole is the top of an imaginary line. This line is the axis around which Earth rotates. The geographic north pole is much like the spindle of a spinning top. The location of the geographic north pole does not change. However, the magnetic north pole shifts in location over time. Depending on where you live, you can correct for the difference between the two poles when you use a map and a compass ( Figure below ). Choices: - mere north - vertical north - right north - true north A:
A: true north

Q: Q: What type of climates are found around the equator? Read this paragraph and choose the correct option from the provided answers: Tropical climates are found around the Equator. As you'd expect, these climates have warm temperatures year round. The warm air rises at the Equator. As it rises, it cools, causing it to rain. Tropical climates may be very wet, or wet and dry. Choices: - arid - tundras - arctics - tropical A:
A: tropical

Q: Q: What do you call the process that results in an animal producing offspring? Read this paragraph and choose the correct option from the provided answers: Choices: - adoption - creationism - differentiation - reproduction A:
A: reproduction