Answer the following question given this paragraph: A combination reaction is a reaction in which two or more substances combine to form a single new substance. Combination reactions can also be called synthesis reactions. The general form of a combination reaction is:. Q: What kind of reaction is a reaction in which two or more substances combine to form a single new substance? Choices: - power reaction - compounding reaction - chemical reaction - combination reaction A:
combination reaction
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Answer the following question given this paragraph: Competition is a relationship between living things that depend on the same resources. The resources may be food, water, or anything else they both need. Competition occurs whenever they both try to get the same resources in the same place and at the same time. The two organisms are likely to come into conflict, and the organism with better adaptations may win out over the other organism. Q: What is a relationship between living things that depend on the same resources? Choices: - parasitic - symbiotic - contention - competition A:
competition
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Answer the following question given this paragraph: Evolution of Mammals Mammals are synapsids, meaning they have a single opening in the skull. They are the only living synapsids, as earlier forms became extinct by the Jurassic period. The early non-mammalian synapsids can be divided into two groups, the pelycosaurs and the therapsids. Within the therapsids, a group called the cynodonts are thought to be the ancestors of mammals (Figure 29.36). Q: Mammals are synapsids, meaning they have a single opening in what structure? Choices: - spine - heart - hip - skull A:
skull
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Answer the following question given this paragraph: Q: What serves to replace nonreproducing specialized cells as needed in the adult body? Choices: - osteoclast cells - monocyte cells - dendritic cells - stem cells A:
stem cells
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