Q: What is a relationship between living things that depend on the same resources? Choices: - parasitic - symbiotic - contention - competition A:
competition

Q: What is the volume of the molecules of an ideal gas? Choices: - three - two - one - zero A:
zero

Q: Which types of waves are used for cell phones and radar? Choices: - light waves - thermal waves - sound waves - microwaves A:
microwaves

Q: What is responsible for the physical changes of puberty? Choices: - nicotine - caffeine - adrenaline - testosterone A:
testosterone