Question: Fact 1: Cells vary in size as well as shape, but all cells are very small. Fact 2: Most cells are too small to be seen without a microscope. Given the two facts above, answer the question "What vary in size as well as shape and cannot be seen without a microscope?" with the following options: - bushes - matter - cells - grains - sand - bones - apples - small
Answer: cells

Question: Fact 1: Sweat wets the skin, and when it evaporates, it cools the body. Fact 2: Fig 4-23 sweat contains water, salt, lactic acid, vit. Given the two facts above, answer the question "What cools the body?" with the following options: - evaporation - Putting heat on it - Movement of an air mass - Starting a fire - Evaporation of alcohol - Evaporation of water - vaporization - reduced heat
Answer: Evaporation of water

Question: Fact 1: Plant reproduction often requires pollen. Fact 2: Hay fever or pollen allergy is the most prevalent allergy. Given the two facts above, answer the question "What is required for plant reproduction?" with the following options: - By wind and rain - Something that is found on a cloud - fertilization occurs - Males and females - Something that comes from a volcano - Something that is invisible - Something that causes allergies - sperm and egg fuse
Answer:
Something that causes allergies