Q: What is the body of a roundworm covered with? Choices: - thick scales - thin epidermis - slime - tough cuticle A:
tough cuticle

Q: The rate of evolution is influenced by the rate of changes to what? Choices: - dna - migration - the earth - the environment A:
the environment

Q: Q: Found in many products, such as petri dishes, agar is made from mucilagnious material in this? Choices: - fungi - seawater - gelatin - seaweed A:
A: seaweed

Question: Q: What is at the top of the mesosphere? Choices: - Troposphere - Stratosphere - Mesosphere - mesopause A:
Answer: mesopause

*Question*
Q: What serves as a first responder to pathogenic threats that bypass natural physical and chemical barriers of the body? Choices: - cells immune system - super immune system - immense immune system - innate immune system A:
**Answer**
innate immune system

(Question)
Q: What causes a meteoroid to vaporize after it enters the atmosphere? Choices: - gravitational pull - atmospheric pressure - spontaneous combustion - friction with atmosphere A:
(Answer)
friction with atmosphere