Q: What part of the plant is the main site of photosynthesis? Choices: - soil - root - stem - leaf A:
leaf

Q: When animals get rid of their gaseous waste, what is exhaled through their mouth and nose? Choices: - oxygen - carbon monoxide - hydrogen - carbon dioxide A:
carbon dioxide

Q: Q: What is the process in which cells make proteins called? Choices: - factor synthesis - light synthesis - gas synthesis - protein synthesis A:
A: protein synthesis

Question: Q: What part of a mature plant cell is responsible for storing substances like water, enzymes, and salts? Choices: - little vacuole - second vacuole - large vacuole - central vacuole A:
Answer: central vacuole

*Question*
Q: What device is used to study charge? Choices: - microtome - nannostomus - microscope - electroscope A:
**Answer**
electroscope

*Question*
Q: What is your body made up of? Choices: - skin - millions of elements - energy - trillions of cells A:
**Answer**
trillions of cells