What is the importance of skeletal system?
A This breaks down the food that we eat
B. This supports and gives the body its shape.
C. It is responsible for the exchange of gases in the body
D. It cleans waste gases
2. In which part of the digestive system does digestion start?
A esophagus
C small intestine
B mouth
D. stomach
3. The following practices contribute to the decreasing population of vertebrates
EXCEPT
A designation of wildlife sanctuaries C. illegal hunting
B. habitat destruction
D. killing the animals
4. Which is considered as the pumping organ of the circulatory system that keeps blood
moving throughout the body?
C blood vessel
A aorta
D heart
B. blood
5. How does integumentary system works with the nervous system?
A. The skin protects the nerves
B. Nervous system helps the skin to maintain its color
C. Integumentary system helps the nervous system to produce blood.
D. Nerves embedded in the skin are responsible for sensing the outside world
6. What scientific term is used to describe animals without backbone?
A amphibians
C. reptiles
B. invertebrates
D. vertebrates
7 Which of the following is NOT considered as a benefit we can get in promoting
healthful habits for our organs?
A early death
B. healthy and happy life
C. properly functioning organs
D. strong defense against diseases
on important to marine life? They​