Answer:
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Explanation:
The first picture shows a cell membrane inside the protein there is a protein that needs energy to carries a molecule. Then, picture a is active transport, it needs energy.
The second picture shows a cell membrane that is that is eating a molecule then this picture shows a endocytosis process. It needs energy.
The third picture shows a cell membrane and a protein inside it, but it doesn't needs energy to carries a molecule, then this picture is an example of facilitated diffusion.
The fourth picture shows a membrane that is excreting wastes or molecules, then this picture is exocytosis. It needs energy.
The answer is carbohydrate. The carbohydrate is consists of monosaccharides which includes sugar(glucose). So the carbohydrate will be a best dietician monitor.
Yes it absolutely makes sense and it is correct. Although there are many more definitions of a gene out there but this one is not wrong.