What is the main difference between active and passive transport? A)the size of the particle
B)the energy required
C)the location where it occurs
D)the type of cell that performs it

B)the energy required

Explanation:

The difference between active and passive transport is in the amount of energy they both require.

Energy is the ability to do work. In passive transport, energy is not used. But in active transport, energy is required.

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u