Q: Grasses supply most of the food consumed by people worldwide, and grasses are an important source of food for people as well as animals. Given these facts, what relies on grass as a food source among the following options: - Bacteria - Soil - humans - More grass - perennials - alpacas - Animals - tortoises
A: Animals

Q: Echinoderms lack respiratory and excretory systems, and starfish and sea urchins are also echinoderms. Given these facts, what kind of animal doesn't have a respiratory or excretory system among the following options: - a fish - bears - ant - whale - humans - starfish - mammals - llama
A: starfish

Q: Unequal heating of Earth 's surface by the Sun causes global wind patterns, and unequal absorption of radiation causes unequal heating of the earth's surface. Given these facts, what are global wind patterns caused by among the following options: - Global cooling - electromagnetic energy - Global warming - exposure to cold - Equal radiation absorption - Greenhouse gasses - Greenhouse gases - Unequal radiation absorption
A: Unequal radiation absorption

Q: Afirecracker converts chemical energy into sound, and most any other sounds can be frightening or startling. Given these facts, what can be startling among the following options: - firecrackers - an image - Saltine crackers - Wheat crackers - an object - sea urchins - sameness - hypothyroidism
A: firecrackers