1. Which process is carried out by all the organisms that live in a forest?

2. What are characteristics of all organisms?

3. Which class of vertebrate includes those with dry scaly skin and four legs?

4. Which structure is found only in plant cells?

5. Which of the following structures is not found in animal cells?

6. Which of the following list contains only arthropods?

7. What is a characteristic of all living organisms?

8. Which kind of skin do amphibians have?

9. Which type of living animal has a rough,dry ,scaly skin?

10. Which does not contain cytoplasm?

11. Which parts are found in both plant and animal cells?

12. Which structure contains genes?

13. Which substance is transported by xylem?

14. Which process involves release of energy from food substances in all living cells?

15. What is cytoplasm?

16. A person has been smoking heavily for many years. A lot of dust and micro-organisms enter their lungs. Which statement explains why this occurs?

17. Which process removes the waste products of metabolism from the body?

18. Which cell type contains the most chloroplast?

19. Which structures are adapted for supporting a plant?

20. Which process in plant cells uses chlorophyll?

21. In a mesophyll cell,where are chloroplast found?

22. What is a feature of both insects and arachnids?

23. By which process does oxygen move into the cytoplasm of root hair cell?