Q: What process refers to the changes that occur in populations of living organisms over time? Choices: - spontaneous mutation - adaptation - variation - evolution A:
evolution

Q: Which kinds of cells have nuclei and other membrane bound organelles? Choices: - lipids - monocytes - prokaryotes - eukaryotes A:
eukaryotes

Q: Q: How high or low a sound seems is associated with what property of the sound? Choices: - decibel - frequency - wavelength - pitch A:
A: pitch

Question: Q: Where does the heartbeat originate in vertebrates? Choices: - the tissue - the pulse - the blood - the heart A:
Answer: the heart

*Question*
Q: The process of microscope mountains and valleys on the surface of a material interacting with another material is called? Choices: - tension - motion - vibration - friction A:
**Answer**
friction

Q: Q: What type of tissue produces and secretes several hormones involved in lipid metabolism and storage? Choices: - hormonal tissue - metabolism tissue - somatic tissue - adipose tissue A:
A: adipose tissue