Q: Over 90% of the energy we use comes originally from what? Choices: - earth - water - horizon - sun A:
sun

Q: What happens to light when it reflects from a rough surface? Choices: - reflects - becomes isolated - becomes concentrated - gets diffused A:
gets diffused

Q: Q: While enzymatic hydrolysis proceeds, peristalsis moves the mixture of chyme and digestive juices along what? Choices: - esophagus - stomach - large intestine - small intestine A:
A: small intestine

Question: Q: What do you call something that controls the uptake of water or another substance in the environment, in order to maintain constant internal conditions? Choices: - sporozoans - protozoans - osmoconformers - osmoregulators A:
Answer: osmoregulators

*Question*
Q: The lymphatic system helps return fluid that leaks from the blood vessels back to what system? Choices: - pulmonary - nervous - peripheral - cardiovascular A:
**Answer**
cardiovascular

(Q).
Q: When alternating primary current passes through coil p, it does what to the iron core? Choices: - electrilizes it - creates it - heats it - magnetizes it A:
(A).
magnetizes it