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

 

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

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

1. What is the main function of the musculoskeletal system?

  1. digestion of food
  2. helps the body absorb oxygen from the air.
  3. provides support, body movement and protecting vital organs. *
  4. carries oxygen, nutrients, and hormones to the cells.

2. Which is NOT a function of the skeletal system?

A.     produce blood cells.

B.       regulates body temperature. *

C.      provide a framework for body tissues.

D.     serves as a storehouse for minerals.

3. The following are types of muscles except _____________.

A.     smooth

B.       skeletal

C.      cardiac

D.     epithelial *

4. Which of the following is a skin pigment that protects cells from sun’s radiation damage?

A.     dermis

B.       collagen

C.      melanin *

D.     keratin

5. Skin plays a role in _____________.

A.     storing minerals

B.       producing blood cells

C.      supporting the body

D.     regulating body temperature *

6. The layer of skin that contains tough connective tissue, hair follicles, and sweat glands.

A.     dermis *

B.       epidermis

C.      subcutaneous

D.     cuticle

7. When exposed to sunlight, skin can produce which vitamin?

A.     Vitamin A

B.       Vitamin B

C.      Vitamin C

D.     Vitamin D *

8. Which of these is NOT a function of the digestive system?

A.     regulating metabolism *

B.       digesting food

C.      absorbing nutrients

D.     eliminating wastes

9. It is a series of wave-like contractions that move food to the different processing stations in the digestive tract.

A.     swallowing

B.       digestion

C.      absorption

D.     peristalsis *

10. Digestion is completed, and food nutrients are absorbed in the ___________________.

A.     stomach

B.       small intestine *

C.      large intestine

D.     rectum

 

 

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