Answer the following question given this paragraph: Allergies occur when the immune system attacks harmless substances that enter the body from the outside. Q: What occurs when the immune system attacks harmless substances that enter the body from the outside? Choices: - cell rejection - anomalies - mutation - allergies A:
allergies
Answer the following question given this paragraph: Figure 7.33 Newborn Skull The bones of the newborn skull are not fully ossified and are separated by large areas called fontanelles, which are filled with fibrous connective tissue. The fontanelles allow for continued growth of the skull after birth. At the time of birth, the facial bones are small and underdeveloped, and the mastoid process has not yet formed. Q: The bones of the newborn skull are not fully ossified and are separated by large areas called what? Choices: - sutures - pores - fissures - fontanelles A:
fontanelles
Q: Answer the following question given this paragraph: If an atom gains electrons, it becomes an ion. Is the ion positively or negatively charged? Explain your answer. Q: If an atom gains electrons, it becomes what? Choices: - anion - a cation - neutral - an ion A:
A: an ion
Question: Answer the following question given this paragraph: All machines make work easier, but they don't increase the amount of work that is done. You can never get more work out of a machine than you put into it. In fact, a machine always does less work on an object than the user does on the machine. That's because a machine must use some of the work put into it to overcome friction. Friction is the force that opposes motion between any surfaces that are touching. All machines involve motion, so they all have friction. How much work is needed to overcome friction in a machine depends on the machine's efficiency. Q: What is the term for force that opposes motion between any touching surfaces? Choices: - gravity - stress - tension - friction A:
Answer: friction
*Question*
Answer the following question given this paragraph: Protists do not create food sources only for sea-dwelling organisms. For instance, certain anaerobic parabasalid species exist in the digestive tracts of termites and wood-eating cockroaches, where they contribute an essential step in the digestion of cellulose ingested by these insects as they bore through wood. Q: Certain anaerobic parabasalid species exist in the digestive tracts of termites and wood-eating cockroaches, where they contribute an essential step in the digestion of this? Choices: - carbonate - fiber - nutrients - cellulose A:
**Answer**
cellulose
Answer the following question given this paragraph: Q: In contrast to mammals and birds, freshwater fishes produce large volumes of very dilute what? Choices: - nitrogen - feces - blood - urine A:
urine