Q: Answer the following question given this paragraph: The main function of the cardiovascular system is transporting substances around the body. Figure above shows some of the substances that are transported in the blood. They include hormones, oxygen, nutrients from digested food, and cellular wastes. Transport of all these materials is necessary to maintain homeostasis of the body and life itself. Q: What is the main function of the cardiovascular system? Choices: - respiration of air - excretion of food waste - coordinate bones and muscles - transporting substances around the body A:
A: transporting substances around the body

Q: Answer the following question given this paragraph: Factors affecting biome type include latitude, humidity, and elevation. Q: Latitude, humidity, and elevation affect the type of what, a term for a large naturally occurring community? Choices: - territory - ecosystem - climate - biome A:
A: biome

Q: Answer the following question given this paragraph: Viewed through a telescope, Venus looks smooth and featureless. The planet is covered by a thick layer of clouds. You can see the clouds in pictures of Venus ( Figure below ). Q: What is venus covered in a thick layer of? Choices: - storms - fog - gases - clouds A:
A: clouds

Q: Answer the following question given this paragraph: Scientists think of nature as a single system controlled by natural laws. Scientists strive to increase their understanding of the natural world by discovering natural laws. Laws of nature are expressed as scientific laws. A scientific law is a statement that describes what always happens under certain conditions in nature. Q: A statement that describes what always happens under certain conditions in nature is also known as what? Choices: - theory - hypothesis - scientific motion - scientific law A:
A: scientific law