Grade 8 General science chapter 4

Welcome to your Grade 8 General science chapter 4

After carefully reading the following 30 questions, choose the correct answer.

1. 
Which layer of the skin is the outermost part that covers the internal body parts?

2. 
What are the hair follicles primarily composed of?

3. 
Which type of exocrine gland in the integumentary system is also known as a sweat gland?

4. 
Which type of muscle is considered non-striated?

5. 
Which part of a tooth is visible above the gum line?

6. 
What is the term for the process of mechanical digestion involving cutting and grinding food in the mouth?

7. 
Which organ is part of the alimentary canal?

8. 
In the skeletal system, which bones are classified as short bones?

9. 
What is the function of yellow bone marrow?

10. 
At what stage of human development do we typically have the highest total number of bones?

11. 
Which system is responsible for the transport of nutrients and oxygen throughout the body?

12. 
What is the shoulder bone composed of?

13. 
Which exocrine gland secretes an oily substance called sebum?

14. 
What describes the whole passage along which food passes from mouth to anus?

15. 
Which layer of the tooth contains blood vessels and nerves?

16. 
Which muscle type is found only in the heart?

17. 
What is the primary function of the integumentary system besides protection?

18. 
Which type of bone structure includes the cranium and scapula?

19. 
What refers to the biological interaction between members of different species?

20. 
Which skeletal part is responsible for protecting the brain?

21. 
What is the hard covering at the end of a finger or toe used for protection?

22. 
Which digestion involves the action of digestive enzymes?

23. 
Which associated organ is part of the digestive system?

24. 
What is the middle layer of the skin located below the epidermis?

25. 
Which type of bone is the vertebrae considered?

26. 
What is the first anterior opening part of the gut?

27. 
Which muscle type is striated and usually under voluntary control?

28. 
Which system facilitates the exchange of oxygen and carbon dioxide?

29. 
Which gland in the integumentary system is associated with earwax production?

30. 
What is the function of the skeletal system regarding blood?

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