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An earthworm has a complete digestive system. How does the earthworm remove undigested food? A. It uses the same opening in which the food was taken in. B. The waste diffuses out through the skin. C. Waste is removed through a designated opening. D. Tentacles are used to remove the waste. Which stage in the process of making a protein should be inserted into Step 4? 1. DNA in the nucleus contains information to code for a protein. 2.RNA stores an exact copy of the DNA sequence and then travels from the nucleus into the cytoplasm. 3. RNA reaches the ribosome. 4. __________________________ 5. The protein is then transported to its proper destination. A. A different kind of DNA decodes the information and disassembles the building blocks of the protein. B. A different kind of RNA decodes the information and assembles the building blocks of the protein. C. The same kind of DNA decodes the information and disassembles the building blocks of the protein. D. A different kind of DNA decodes the information and assembles the building blocks of the protein. What would happen to individual muscles if muscle cells failed to function properly? A. The muscles won’t contract. B. The muscle tissues will have to work much harder, and the individual muscles will tire more quickly. C. The muscle cells will start to twitch, which will cause the individual muscles to become weaker. D. The individual cells will lose their ability to coordinate their movements. How do muscle cells form different types of tissues? A. Information in the DNA of the nucleus can tell muscle cells how to develop and perform special functions. A group of these cells that perform similar functions become muscle tissue. B. Information in the RNA of the nucleus can tell muscle tissues how to develop and perform special functions. A group of these cells that perform similar functions become muscle systems. C. Messages from the brain can tell muscle cells how to develop and perform special functions. A group of these cells that perform similar functions become muscle tissue. D. Messages from the heart can tell muscle cells how to develop and perform special functions. A group of these tissues that perform similar functions become muscle organs.

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