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6th Grade Science Reviewer Part 8 LIVING THINGS AND THEIR ENVIRONMENT

 

6th Grade Science Reviewer         Part 8        Living Things and Their Environment

Direction: Choose the letter with the best answer. Write your answer on your answer sheet.

1. What is the function of the digestive system?

A.     It is the framework of the body.

B.       It supports the skeleton and enables the body to move.

C.      It is the control center of the body.

D.     It takes care of digesting the food, absorbing nutrients, and eliminating waste materials from the body. *

2. The hollow muscular organ is located between the esophagus and small intestine.

A.     liver

B.       pancreas

C.      stomach *

D.     diaphragm

3. The muscular tube through which food passes from the pharynx to the stomach.

A.     small intestine

B.       large intestine

C.      rectum

D.     esophagus *

4. The part of the digestive system where most digestion and absorption of food takes place.

A.     stomach

B.       esophagus

C.      small intestine *

D.     large intestine

5. What organ of the digestive system absorbs water and vitamins while converting undigested food into feces?

A.     liver

B.       small intestine

C.      large intestine *

D.     rectum

6. What do you call the process of breaking down of food into simple nutrients that can be used

    by the cells of the body?

A.     circulation

B.       digestion *

C.      respiration

D.     excretion

7. What is the major organ of the respiratory system?

A.     brain

B.       lungs *

C.      heart

D.     kidneys

8. During inhalation, the diaphragm contracts and moves down, causing the volume of the chest cavity to ________. 

A.     increase *

B.       decrease

C.      relax

D.     stay the same.

9. These are a pair of bean-shaped organs that are the body’s water control and blood-cleaning plants.

A.     kidneys *

B.       lungs

C.      hormones

D.     enzymes

10. What is the basic unit or building block of the nervous system?

A.     nerves

B.       brain

C.      neuron *

D.     somatic

 

 

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