1.What is the function of melanin in the epidermis? a. To provide support for blood vessels
b. To waterproof and protect the skin surface
c. To protect tissues from ultraviolet radiations
d. To stimulate the growth of hairs in the follicles
2.Which actions takes place in the stomach?
a. Protein is broken down
b. Amylase breaks down starches into sugar molecules
c. Large fat molecules are digestive into smaller fat molecules
d. Nutrients are absorbed and distributed to different body cells
3.Which structure moves down as its muscles contract?
a. Diaphragm
b. Pharynx
c. Ribs
d. Trachea
4.What do we call the muscles that we can control?
a. Voluntary
b. Cardiac
c. Smooth
d. Involuntary
5.Which of the following protect the lungs?
a. Clavicle
b. Ribs
c. Scapula
d. Sternum
6.It is the largest organ in our body.
a. Intestine
b. Pelvic bone
c. Skin
d. Eyes
7.How does air enter your body?
a. Trough the digestive tract
b. Trough the respiratory tract
c. Trough the pores of the skin
d. Trough the ear canal
8.Which of these is NOT a part of the digestive system?
a. Kidneys
b. Mouth
c. Stomach
d. Esophagus

sana po sagutin niyo ng maayos​