Question: Q: When members of the same species compete for the same resources, it is called what? Read this paragraph and choose the correct option from the provided answers: Intraspecific competition happens when members of the same species compete for the same resources. For example, two trees may grow close together and compete for light. One may out-compete the other by growing taller to get more available light. As members of the same species are usually genetically different, they have different characteristics, and in this example, one tree grows taller than the other. The organism that is better adapted to that environment is better able to survive. The other organism may not survive. In this example, it is the taller tree that is better adapted to the environment. Choices: - interspecies competition - natural selection - extinction - intraspecific competition A:
Answer: intraspecific competition

Question: Q: Hair and nails are made of what? Read this paragraph and choose the correct option from the provided answers: Hair and nails are made of keratin, a tough protein. Choices: - chromatin - proteins - cellulose - keratin A:
Answer: keratin

Question: Q: Batteries produce voltage through what type of reaction? Read this paragraph and choose the correct option from the provided answers: Chemical cells are found in batteries. They produce voltage by means of chemical reactions. Chemical cells have two electrodes, which are strips of different materials, such as zinc and carbon. The electrodes are suspended in an electrolyte. This is a substance that contains free ions, which can carry electric current. The electrolyte may be either a paste, in which case the cell is called a dry cell, or a liquid, in which case the cell is called a wet cell. Flashlight batteries contain dry cells. Car batteries contain wet cells. Choices: - liquid - non-chemical - thermal - chemical A:
Answer:
chemical