This cell is eukaryotic because it contains membrane-bound organelles such as lysosomes and vacuoles.
It occurs without energy input. Passive transporters let something across a membrane "with the gradient" in other words, substances travel from high concentration to low concentration, which is energetically favorable.
Answer:
A) It is composed of a network of moist passageways that permit air to flow from the external environment to the lungs.
Explanation:
Start off of how cells are made, naming each different cell in a human cell and later go into detail of the different things in the cell. Sounds like a lot, but it's worth the effort.