Best answer gets
how do cells use food to make energy and maintain homeostasis?

why are organisms classified?

how are organisms classified?

how is a branching tree diagram used?

The food gives the organism the energy it needs. Every species has to be organized in groups to make it easier for identification. All living organisms are classified according to their common characteristics. The branches are the relations between the organisms.

Explanation:

How do cells use food to make energy and maintain homeostasis?

The body is mixing the food with liquid and all the elements from food are turning into glucose that gives the energy to the body. The cell membrane regulates the entrance of the water into the cell. That is how the process of homeostasis is maintained.

Why are organisms classified?

Every species has to be organized in groups to make it easier for identification. It is a good way to understand the relations between organisms.

How are organisms classified?

All living organisms are classified according to their common characteristics. There are 7 levels of classification: kingdom, phylum, classes, order, families, genus, and species.

How is a branching tree diagram used?

In branching tree diagram species that have less common characteristics are on the bottom, and those who have the most common characteristics are on the top.

Branches on branching tree serve to sow which characteristics are in common to species and which not, to become new species. Also, the evolution of organisms is shown on the diagram, following the line on the right.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

yes, because even though a theory has a  lot of evidence to support it, it is not always true