A unit is a base accepted reference for measuring something.

1. False
2. True

Q. Using the human body parts as a standard for measurement is a universally accepted idea.

Q. What is the base unit for measuring distance in the metric system?

Q. A physical quantity is something that cannot be measured or quantified.

Q. In reference toTHE FUNDAMENTAL UNIT OF LIFE: CELL
What happens when something hits hard on the apithaleal tissue(skin)?
Why does that part get swollen up?
What kind of reaction takes place?