1.
to put food in boiling water for a few seconds in order to loosen the skin or to kill enzymes is blanching.

true

false
2.
an immune system is a system of biological structures and processes within an organism that protects against disease.

true

false
3.
cholesterol is a disease of bone that leads to an increased risk of fracture.

true

false
4.
hypertension is high blood pressure.

true

false
5.
a lack of something is a deficiency.

true

false