Q: Q: What feature of the land do contour lines show? Choices: - trails - flat surfaces - bodies of water - three-dimensional shape A:
A: three-dimensional shape

Q: Q: The amount of water vapor in the air and the temperature of the medium affects how fast what travels? Choices: - colour - light - traffic - sound A:
A: sound

Q: Q: Peroxisomes perform a couple of different functions, including lipid metabolism and chemical detoxification. in contrast to the digestive enzymes found in lysosomes, the enzymes within peroxisomes serve to transfer hydrogen atoms from various molecules to oxygen, producing what? Choices: - calcium - water - hydrogen - hydrogen peroxide A:
A: hydrogen peroxide

Q: Q: What is the term for a structure within the cytoplasm that performs a specific job in the cell? Choices: - mitochondria - nucleus - ribosome - organelle A:
A: organelle