Q: What kind of messages do neurons send? Choices: - minor messages - Neurotic messages - digestive messages - electrical messages A:
electrical messages

Q: Cations have what type of charge? Choices: - negative - neutral - constant - positive A:
positive

Q: Q: Surprisingly, where would you find the earth's tallest mountains and deepest canyons? Choices: - Tibet - rain forests - taiga - ocean floor A:
A: ocean floor

Question: Q: Pure substances have a constant composition and can only be changed through what? Choices: - heating - dissolution - liquid reactions - chemical reactions A:
Answer: chemical reactions

*Question*
Q: Skeletal, cardiac, and smooth are the three types of what cells and possess morphologies correlated with their functions? Choices: - cartilage tissue - organ - bone - muscle A:
**Answer**
muscle

Q: Is the most basic what is the most basic of the sciences, concerning itself with energy, matter, space and time, and their interactions? Choices: - experiments - biology - genetics - physics A:
physics