Year :
1978
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
21 - 30 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 21. |
The neck region of the tape worm, (taenia) is responsible for the A. production of egg B. storage of egg C. formation of new segment D. development of the suckers E. fragmentaion of the body segment Detailed SolutionThe adult tapeworm possesses a series of flat, rectangular body segments, or proglottids, generated by the neck. |
|
| 22. |
Which of these is not true of the insect? The possession of A. two pairs of antennae B. jointed appendages C. exoskeleton D. three pairs of legs E. segmented body Detailed SolutionInsects possess one pair of antenna and not two pairs. |
|
| 23. |
Rhizopus (or mucor)obtain its food from dead organic matter extracellularly. It is said to be A. a facultative parasite B. saprophyte C. an obligate parasite D. a commensal E. an autotroph Detailed SolutionA saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals. |
|
| 24. |
The feature that distinguish the toad or frog from the fish is the absence of A. scales B. lungs C. paired appendages D. a tail E. skin glands Detailed SolutionThe fish possesses scales while the frog or toad do not. |
|
| 25. |
Which of these is not associated with tadpole stages of toad or frog A. V-shaped gland B. operculum C. external gills D. jelly E. shell Detailed Solution Tadpoles have soft skins and do not possess shells. |
|
| 26. |
Which of these is not associated with the movement of the toad, reptile or bird? A. Hopping B. Bopping C. Flapping D. Gliding E. Pecking Detailed SolutionPecking is a form of feeding for birds not movement. |
|
| 27. |
Which of these is not a part of the feather of a bird? A. Wing B. aftershaft C. Inferior umblilicus D. Vane E. Barbule Detailed SolutionThe feather contains a vane, afterfeather, calamus, barb, rachis. |
|
| 28. |
Which of these is not a function of the mammalian skin/ A. Protection against bacteria infection B. Excretion of waste and water C. Production of vitamin d when exposed to sun light D. production of pigments to reduce temperature E. Regulation of body temperature Detailed SolutionRegulates body temperature.Excretes toxic substances with sweat. Protection of the body from harmful effects of the sun and radiation. Prevents penetration of toxic substances. |
|
| 29. |
Which of these elements in plants is required in small quantities only A. Boron B. Nitrogen C. Phosphorus D. Magnesium E. Potassium Detailed SolutionBoron (B) is not required by plants in high amounts, but can cause serious growth problems if it is not supplied at appropriate levels. |
|
| 30. |
A potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard? A. 15 secs B. 30secs C. 25secs D. 20secs E. 28secs |
B |
| 21. |
The neck region of the tape worm, (taenia) is responsible for the A. production of egg B. storage of egg C. formation of new segment D. development of the suckers E. fragmentaion of the body segment Detailed SolutionThe adult tapeworm possesses a series of flat, rectangular body segments, or proglottids, generated by the neck. |
|
| 22. |
Which of these is not true of the insect? The possession of A. two pairs of antennae B. jointed appendages C. exoskeleton D. three pairs of legs E. segmented body Detailed SolutionInsects possess one pair of antenna and not two pairs. |
|
| 23. |
Rhizopus (or mucor)obtain its food from dead organic matter extracellularly. It is said to be A. a facultative parasite B. saprophyte C. an obligate parasite D. a commensal E. an autotroph Detailed SolutionA saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals. |
|
| 24. |
The feature that distinguish the toad or frog from the fish is the absence of A. scales B. lungs C. paired appendages D. a tail E. skin glands Detailed SolutionThe fish possesses scales while the frog or toad do not. |
|
| 25. |
Which of these is not associated with tadpole stages of toad or frog A. V-shaped gland B. operculum C. external gills D. jelly E. shell Detailed SolutionTadpoles have soft skins and do not possess shells. |
| 26. |
Which of these is not associated with the movement of the toad, reptile or bird? A. Hopping B. Bopping C. Flapping D. Gliding E. Pecking Detailed SolutionPecking is a form of feeding for birds not movement. |
|
| 27. |
Which of these is not a part of the feather of a bird? A. Wing B. aftershaft C. Inferior umblilicus D. Vane E. Barbule Detailed SolutionThe feather contains a vane, afterfeather, calamus, barb, rachis. |
|
| 28. |
Which of these is not a function of the mammalian skin/ A. Protection against bacteria infection B. Excretion of waste and water C. Production of vitamin d when exposed to sun light D. production of pigments to reduce temperature E. Regulation of body temperature Detailed SolutionRegulates body temperature.Excretes toxic substances with sweat. Protection of the body from harmful effects of the sun and radiation. Prevents penetration of toxic substances. |
|
| 29. |
Which of these elements in plants is required in small quantities only A. Boron B. Nitrogen C. Phosphorus D. Magnesium E. Potassium Detailed SolutionBoron (B) is not required by plants in high amounts, but can cause serious growth problems if it is not supplied at appropriate levels. |
|
| 30. |
A potometer was used to compare the rate of loss of the same volume of water from a plant under different environmental conditions as under a fan, at the sea shore, under the sun, in the airy laboratory and in cupboard. What time was likely to have been obtained in a cupboard? A. 15 secs B. 30secs C. 25secs D. 20secs E. 28secs |
B |