Ques: Q: As a diver descends, the increase in pressure causes the body's air pockets in the ears and lungs to do what? Choices: - heat up - expand - blow up - compress A:
Ans: compress

Ques: Q: Vaccinations are designed to boost immunity to a virus to prevent this? Choices: - mutation - reproduction - pathogen - infection A:
Ans: infection

Ques: Q: What type of blood cells transport oxygen to the tissues so they can function? Choices: - white blood cells - mutated blood cells - depleted blood cells - red blood cells A:
Ans: red blood cells

Ques: Q: Through which process do behaviors that improve fitness increase? Choices: - mutation - succession - adaptation - natural selection A:
Ans:
natural selection