Answer:
<u><em>Active Transport</em></u>
Explanation:
<u><em>active transport
</em></u>
During <u><em>active transport</em></u>, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
My favorite color is blue 143
Hello.
This stament is true.
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4 chambers in the heart and mammals and birds have the same number of chambers
I'd say false. Mostly because organisms (most of them) slowly evolve over time due to little changes.