Biology JAMB Past Questions and Answers 2021

1. Use the diagram below to answer questions

In ferns, the structure above is equivalent to the

2. Use the diagram below to answer questions

The structures labelled II and III respectively are

3. Which of the following organisms does not exist as a single free living cell?

A.

4. The mode of feeding in Amoeba and Hydra is

5. Water fleas, wood lice and barnacles belong to the group

6. Most monocots are easily recognized by their

7. Which of the following groups is the most advanced?

8. The jointed structure in insects that bears organs is which are sensitive to touch, smell and vibration the

9. Viviparity occurs in the

10. Amphibians are normally found

11. The mutation theory of organic evolution was propounded by

12. Complex social behaviour and organization are found mostly in

13. In a group of male Agama lizards, the one with the brightest head colour is the

14. A certain savanna grasshopper changes colour from green during the rainy season to black during the dry season and black after the dry season bush fires. The reason for these colour changes is that the

15. Which of the following structural features are adapted for uses other than water conservation?

16. Peripheral arrangement of vascular tissue in dicots is a characteristic of the internal structure of the

17. The set of fins that controls steering, balancing and change of direction and pitch in fish is

18. Use the diagram below to answer questions

The part that will develop into an organ for feeling is labelled

19. Use the diagram below to answer questions

The part labeled II is the

20. Which of the following features are all associated with monocots?

21. Coelom is absent in the class of animals termed

22. The order in which organic evolution has progressed in plants is

23. The most recently evolved structure in animals is the

24. The sign is used to indicate an association where an organism gains, while 0 is used where unaffected. An association an organism is indicated as+ 0 is known as

25. A soil consisting of alumina and iron (II) oxide is known as

26. Vaccination is carried out in order to

27. Floating microscopic heterotrophs are mostly grouped as

28. The construction of dams may lead to an increase in the prevalence of

29. Use the diagram below to answer questions

Which of the bones is the radius?

30. Use the diagram below to answer questions

The structure labelled II articulates with III to form a

31. In which of the following groups of vertebrate, would the largest amount of yolk be found in the egg?

32. The companion cells are part of the

33. The appendicular skeleton is composed of the pectoral girdle.

34. A band of connective tissue linking two bones in a joint is known as

35. The process of deamination is essential for the

36. Stomatal pores open when there is

37. Anaerobic respiration differs from aerobic respiration by the production of

38. The element that is essential for the coagulation of blood is

39. Oozing out of water from the leaves of plants in a humid environment is known as

40. A food substance was treated with a few drops of Sudan III solution and a red colora was obtained. The food contained