Q: What type of digestion is chewing an example of? Choices: - electromagnetic - gravity - fluid - mechanical A:
mechanical

Q: Diagnosing and treating cancer is a beneficial use of what potentially dangerous energy? Choices: - thermal - mechanical - solar - radiation A:
radiation

Q: Q: What chemical substances are secreted by animals that communicate by odor or taste? Choices: - alaki - hormones - acids - pheromones A:
A: pheromones

Question: Q: What is the star-like structure inside the paramecia? Choices: - the reflex vacuole - the elongated vacuole - the bare vacuole - the contractile vacuole A:
Answer: the contractile vacuole

*Question*
Q: What term is used to describe the total spread of values in a sample? Choices: - variety - axis - scale - range A:
**Answer**
range

Q: Q: What term is not the same as energy, but means the energy per unit charge? Choices: - frequency - speed - mass - voltage A:
A: voltage