*Question*
Q: In passive transport, small molecules or ions move across the cell membrane without requiring input of what? Choices: - pressure - water - heating - energy A:
**Answer**
energy

*Question*
Q: What color is neptune? Choices: - yellow - pink - white - blue A:
**Answer**
blue

*Question*
Q: Gene expression is regulated primarily at the what level? Choices: - manufacturing - translational - binding - transcriptional A:
**Answer**
transcriptional

*Question*
Q: What is the hypothesis that states that the biosphere is its own living organism? Choices: - Big Bang theory - Geiger theory - Pascal's hypothesis - gaia hypothesis A:
**Answer**
gaia hypothesis