Q: Like all chordates, vertebrates are animals with four defining traits, at least during which stage? Choices: - pupal - larval - adult - embryonic A:
embryonic

Q: What thickens the cortex around the inner edge of a cell? Choices: - mitochondria - vacuoles - plasma membrane - microfilaments A:
microfilaments

Q: Q: Zinc is more easily oxidized than iron because zinc has a lower reduction potential. since zinc has a lower reduction potential, it is a more what? Choices: - much metal - Trap metal - usually metal - active metal A:
A: active metal

Question: Q: Made of hot, solid rock, the mantle is beneath what layer of the earth? Choices: - liquid - volcanic - core - crust A:
Answer: crust

*Question*
Q: How can people access water in an aquifer that does not flow from a spring or a geyser? Choices: - mound building - generate electricity - evaporation - dig a well A:
**Answer**
dig a well

*Question*
Q: What is the atomic number of magnesium? Choices: - 17 - 25 - 8 - 12 A:
**Answer**
12