Q: How much unpolarized light does a polarized filter block? Choices: - 40 % - 60 % - 100% - 50% A:
50%

Q: The infection-fighting complement system consists of roughly 30 proteins in? Choices: - stomach acid - stool - fats - blood plasma A:
blood plasma

Q: The primary application of biotechnology is in what field? Choices: - physics - chemistry - psychology - medicine A:
medicine