*Question*
Q: In passive transport, small molecules or ions move across the cell membrane without requiring input of what? Read this paragraph and choose the correct option from the provided answers: Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. The three main kinds of passive transport are diffusion, osmosis, and facilitated diffusion. Choices: - pressure - water - heating - energy A:
**Answer**
energy

*Question*
Q: What color is neptune? Read this paragraph and choose the correct option from the provided answers: Like Uranus, Neptune is blue. The blue color is caused by gases in its atmosphere, including methane. Neptune is not a smooth looking ball like Uranus. The planet has a few darker and lighter spots. When Voyager 2 visited Neptune in 1986, there was a large dark-blue spot south of the equator. This spot was called the Great Dark Spot. When the Hubble Space Telescope photographed Neptune in 1994, the Great Dark Spot had disappeared. Another dark spot had appeared north of the equator. Astronomers believe that both of these spots represent gaps in the methane clouds on Neptune. Choices: - yellow - pink - white - blue A:
**Answer**
blue

*Question*
Q: Gene expression is regulated primarily at the what level? Read this paragraph and choose the correct option from the provided answers: Gene expression is regulated primarily at the transcriptional 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? Read this paragraph and choose the correct option from the provided answers: The Gaia hypothesis states that the biosphere is its own living organism. The hypothesis suggests that the Earth is self-regulating and tends to achieve a stable state, known as homeostasis . For example the composition of our atmosphere stays fairly consistent, providing the ideal conditions for life. When carbon dioxide levels increase in the atmosphere, plants grow more quickly. As their growth continues, they remove more carbon dioxide from the atmosphere. In this way, the amount of carbon dioxide stays fairly constant without human intervention. Choices: - Big Bang theory - Geiger theory - Pascal's hypothesis - gaia hypothesis A:
**Answer**
gaia hypothesis