Answer the following question given this paragraph: Natural gas is delivered to homes, where it is used for cooking and heating. Natural gas is also a major energy source for powering turbines to make electricity. Natural gas releases most of its energy as heat when it burns. The power plant is able to use this heat, either in the form of hot gases or steam, to spin turbines. The spinning turbines turn generators, and the generators create electricity. Q: What type of gas is delivered to homes to use for cooking and heating? Choices: - fluid gas - compounded gas - nuetralized gas - natural gas A:
natural gas
Answer the following question given this paragraph: Unlike the majority of arachnids, scorpions produce live young. The young are carried about on the mother's back until they have molted at least once. They reach an age of between four to 25 years. Q: What type of young do scorpions produce? Choices: - twins - identical - guppies - live A:
live
Q: Answer the following question given this paragraph: Q: Hormones vary widely in molecular size and type as well as? Choices: - simple regulators - strange regulators - foreign regulators - local regulators A:
A: local regulators
Question: Answer the following question given this paragraph: Pesticides were designed to kill bothersome insects. However, sometimes these pesticides will stop working. A pesticide that has worked in the past may no longer kill a particular type of insect. This is due to the development of resistance in the population of insects. The development of resistance to pesticides is one example of microevolution, a small change in a population. Q: Resistance to pesticides in a population of insects is an example of what? Choices: - macroevolution - redistributions - extinction - microevolution A:
Answer: microevolution
*Question*
Answer the following question given this paragraph: Muscles cannot contract on their own. They need a stimulus from a nerve cell to "tell" them to contract. Let's say you decide to raise your hand in class. Your brain sends electrical messages to nerve cells, called motor neurons, in your arm and shoulder. The motor neurons, in turn, stimulate muscle fibers in your arm and shoulder to contract, causing your arm to rise. Involuntary contractions of cardiac and smooth muscles are also controlled by nerves. Q: What do muscles need to contract? Choices: - stress - tendons - pressures - stimulus A:
**Answer**
stimulus
(Q).
Answer the following question given this paragraph: Few genetic disorders are controlled by dominant alleles. A mutant dominant allele is expressed in every individual who inherits even one copy of it. If it causes a serious disorder, affected people may die young and fail to reproduce. Therefore, the mutant dominant allele is likely to die out of the population. Q: Dominant alleles rarely cause what type of disorders, since the mutant allele is likely to die out of the population? Choices: - mutations - sex-linked disorders - cancers - genetic disorders A:
(A).
genetic disorders