A) Osmosis is a form of passive transport. Which defines osmosis? (1 point)
the movement of water across a semipermeable membrane up a concentration gradient from low to high, using no energy
the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy
the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy
According to the law of demand, what role do low prices serve for buyers?
(1 point)
substitute
substitute
supply
supply
reward
reward
penalty
penalty
A) Endocytosis and exocytosis are forms of active transport. What is active transport? (1 point)
the movement of molecules down a concentration gradient from high to low, using no energy
the movement of molecules down a concentration gradient from high to low, using energy
the movement of molecules up a concentration gradient from low to high, using no energy
the movement of molecules up a concentration gradient from low to high, using energy
the movement of molecules up a concentration gradient from low to high, using energy
According to the law of demand, low prices serve as a reward for buyers.
How does scarcity affect customers?
(1 point)
Limited money and resources forces consumers to make choices.
Limited money and resources forces consumers to make choices.
Limited time prevents customers from making decisions.
Limited time prevents customers from making decisions.
It encourages strong economic growth
It encourages strong economic growth
Limited wants and needs limit customers to small purchases.
Limited money and resources forces consumers to make choices.
) What does it mean for an environment to be isotonic? (1 point)
The concentration of solute is greater in the environment than inside the cell.
The concentration of solute in the environment is different from the concentration inside the cell.
The concentration of solute in the environment and the concentration inside the cell are at equilibrium.
The concentration of solute is greater inside the cell than in the environment.
The concentration of solute in the environment and the concentration inside the cell are at equilibrium.
Which of the following goods or services is an import to the United States?(1 point)
an automobile that is manufactored in the USA
an automobile that is manufactored in the USA
apples grown on a farm in Vermont
apples grown on a farm in Vermont
oil bought by the United States from the Middle East
oil bought by the United States from the Middle East
software created in California and used in Chicago