Q: What are all tissues external to the vascular cambium called? Choices: - nucleus - membranes - larvae - bark A:
bark

Q: Metal detectors used for airport security work on which principle? Choices: - electricity - inertia - conductivity - inductance A:
inductance

Q: Which disease afflicts children who don't get enough calcium during their bone formation stage? Choices: - sids - rabies - cancer - rickets A:
rickets