Q: Q: One of the main features all vetebrates have in common is what? Read this paragraph and choose the correct option from the provided answers: Vertebrates. From the smallest of fish to us. One of the main features we all have in common is our backbone. The Vertebrates chapter describes the biological features of fish, amphibians, reptiles, birds, and mammals. Choices: - hard shell - brain - skeleton - backbone A:
A: backbone

Q: Q: Like a runner passing a baton, the transmission of nerve impulses between neurons depends on what? Read this paragraph and choose the correct option from the provided answers: The transmission of nerve impulses between neurons is like the passing of a baton between runners in a relay race. After the first runner races, she passes the baton to the second runner. Then the second runner takes over. Instead of a baton, a neuron passes neurotransmitters to the next neuron. Choices: - enzymes - axons - receptors - neurotransmitters A:
A: neurotransmitters

Q: Q: What compounds, which serve as fuels and are used in manufacturing, are called the driving force of western civilization? Read this paragraph and choose the correct option from the provided answers: It is hard to overstate the importance of hydrocarbons to modern life. Hydrocarbons have even been called the driving force of western civilization. You saw some ways they are used in Figure above . Several other ways are illustrated in Figure below . Their most important use is as fuels. Gasoline, natural gas, fuel oil, diesel fuel, jet fuel, coal, kerosene, and propane are just some of the hydrocarbon compounds that are burned for fuel. Hydrocarbons are also used to manufacture many products, including plastics and synthetic fabrics such as polyester. Choices: - forests - fossils - gas - hydrocarbons A:
A: hydrocarbons

Q: Q: Like the strings of cello, anything that vibrates produces waves of what? Read this paragraph and choose the correct option from the provided answers: A: Like the strings of cello, anything that vibrates produces waves of energy that travel through matter. For example, when you throw a pebble into a pond, waves of energy travel from the pebble through the water in all directions. Like an incandescent light bulb, anything that glows consists of matter that produces light energy. For example, fireflies use chemicals to produce light energy. Like a moving tennis racket, anything that moves has energy because it is moving, including your eyes as they read this sentence. Choices: - heating - light - sound - energy A:
A: energy