What would happen if our bodies could not metabolize glucose

The body can still get glucose from food, but the glucose can't get into the cells, where it's needed, and glucose stays in the blood. This makes the blood sugar level very high. ... When this happens, it may no longer be able to produce enough insulin to keep blood sugar levels where they should be.

Biology is the Study of anything that can be termed as living.

The main branches of biology are ; botany and zoology

Explanation:

Botany is the Study of plants

zoology is the Study of animals