Answer the following question given this paragraph: "Dry ice," or solid carbon dioxide, is a substance that sublimes at atmospheric pressures. Dry ice is very cold (78C) and so is used as a coolant for goods such as ice cream that must remain frozen during shipment. Because the dry ice sublimes rather than melting, there is no liquid mess associated with its change of state as the dry ice warms. As you may have seen in demonstrations, dry ice merely transforms from a solid to a cold, steamy looking gas. Ferrocene (an iron-containing compound) is usually purified by sublimation by gentle warming at atmospheric pressure. In the Figure below , you can see the reddish ferrocene crystals deposited on the outside of that tube. Deposition is the change of state from a gas to a solid. Q: What is the common term for solid carbon dioxide, which is used as a coolant? Choices: - blue ice - antifreeze - liquid nitrogen - dry ice A:
dry ice
Answer the following question given this paragraph: Sound waves are mechanical waves, and mechanical waves can only travel through matter. The matter through which the waves travel is called the medium (plural, media). The Table below gives the speed of sound in several different media. Generally, sound waves travel most quickly through solids, followed by liquids, and then by gases. Particles of matter are closest together in solids and farthest apart in gases. When particles are closer together, they can more quickly pass the energy of vibrations to nearby particles. You can explore the speed of sound in different media at this URL:. Q: What is the matter through which sound waves travel? Choices: - dust - mass - air - medium A:
medium
Q: Answer the following question given this paragraph: A person can live a normal, healthy life with just one kidney. However, at least one kidney must function properly to maintain life. Diseases that threaten the health and functioning of the kidneys include kidney stones, infections, and diabetes. Q: Stones, infections, and diabetes threaten the health and functioning of what paired organs? Choices: - tissues - lungs - arteries - kidneys A:
A: kidneys
Question: Answer the following question given this paragraph: Scientists think that protists are the oldest eukaryotes. If so, they must have evolved from prokaryotic cells. How did this happen? The endosymbiotic theory provides the most widely-accepted explanation. That's because it is well supported by evidence. Q: What do many scientists think are the oldest eukaryotes? Choices: - prokaryotes - plants - arthropods - protists A:
Answer: protists
*Question*
Answer the following question given this paragraph: Monotremes reproduce by laying eggs. They have a cloaca instead of a uterus and vagina. The eggs pass through the opening of the cloaca. This form of reproduction is the least risky for the mother. However, eggs are harder to protect than is an embryo or a fetus in a pouch or uterus. Therefore, monotreme offspring may have a lower chance of surviving than the offspring of therian mammals. Q: How do basal mammals like monotreme reproduce? Choices: - cloning - budding - live birth - by laying eggs A:
**Answer**
by laying eggs
(Question)
Answer the following question given this paragraph: Obtaining energy from glucose is one of the basic functions of cells. Another basic function of living cells is dividing. Q: A basic function of cells includes obtaining what from glucose? Choices: - food - proteins - acids - energy A:
(Answer)
energy