Year :
2018
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
11 - 20 of 90 Questions
| # | Question | Ans |
|---|---|---|
| 11. |
Which of the following structures is not a skeletal material? A. Chitin B. Cartilage C. Bone D. Muscle |
|
| 12. |
The reason why the flow of blood through the capillaries is very slow is A. because the walls of Capillaries are very thick B. to avoid high blood pressure C. to ensure that the individual does not get dizzy D. Their large numbers and one cell-thick walls enables them to provide a large surface area through which materials can be exchanged between the blood and the body cells. Detailed SolutionTheir large numbers and one cell-thick walls enables them to provide a large surface area through which materials can be exchanged between the blood and the body cells.There is an explanation video available below. |
|
| 13. |
Which of the following groups of organisms has kidney as the excretory organ? A. Fishes, amphibians, birds, man B. Fishes, amphibians, annelids, insects C. Fishes, reptiles, birds, tapeworm D. Fishes, protozoans, amphibians, man Detailed SolutionAll of the organisms listed in option A use kidneys as their excretory organ.There is an explanation video available below. |
|
| 14. |
Which of the following features is not a characteristic of arteries? Arteries A. possess valves at internals throughout their length B. have thick muscular and elastic walls C. carry blood away from the heart D. transport oxygenated blood with the exception of the pulmonary artery Detailed Solution*Caries blood away from heart*Thick, muscular, elastic wall *Blood is at high pressure and flows fast in spurts(pulse waves) *Valves absent (except for semi-lunar valves near the heart) *Blood is oxygenated (except that is pulmonary arteries) There is an explanation video available below. |
|
| 15. |
 The graph below shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.Which of the statements below is valid? A. The bird's blood was always warmer than that of the lizard B. The body temperature of the bird varied less than that of the lizard during changes in environmental temperature C. The body temperature of the bird remained constant despite changes in environmental temperature D. The body temperature of the lizard was always close to that of the environmental temperature |
|
| 16. |
 The graph above shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.What physiological term can used to describe the regulation of the body temperature of the of the Lizard? A. Homeostasis B. Homoithermy C. Poikilothermy D. Osmoregulation |
|
| 17. |
The reason why hospitals use saline solutions as drip Instead of water is A. because salt is a preservative B. to prevent contamination of the body C. to maintain the composition of body fluids D. to increase the number of blood cells |
|
| 18. |
The part of the ear which contains nerve cells sensitive to sound vibrations is the A. cochlea B. ampulla C. tympanum D. malleus Detailed SolutionThe cochlea (auditory inner ear) transforms the sound in neural message. The function of the cochlea is to transform the vibrations of the cochlear liquids and associated structures into a neural signal.There is an explanation video available below. |
|
| 19. |
Spectacles with convex lenses correct long-sightedness by A. converging the light rays before they enter the eye B. diverging the light rays before they enter the eye C. reducing the light intensity before it enters the eye D. increasing the light intensity before it enters the eye |
|
| 20. |
A seed of a flowering plant can best be described as A. radicle and plumule B. the developed ovule C. the embryo and endosperm D. developed ovary |
| 11. |
Which of the following structures is not a skeletal material? A. Chitin B. Cartilage C. Bone D. Muscle |
|
| 12. |
The reason why the flow of blood through the capillaries is very slow is A. because the walls of Capillaries are very thick B. to avoid high blood pressure C. to ensure that the individual does not get dizzy D. Their large numbers and one cell-thick walls enables them to provide a large surface area through which materials can be exchanged between the blood and the body cells. Detailed SolutionTheir large numbers and one cell-thick walls enables them to provide a large surface area through which materials can be exchanged between the blood and the body cells.There is an explanation video available below. |
|
| 13. |
Which of the following groups of organisms has kidney as the excretory organ? A. Fishes, amphibians, birds, man B. Fishes, amphibians, annelids, insects C. Fishes, reptiles, birds, tapeworm D. Fishes, protozoans, amphibians, man Detailed SolutionAll of the organisms listed in option A use kidneys as their excretory organ.There is an explanation video available below. |
|
| 14. |
Which of the following features is not a characteristic of arteries? Arteries A. possess valves at internals throughout their length B. have thick muscular and elastic walls C. carry blood away from the heart D. transport oxygenated blood with the exception of the pulmonary artery Detailed Solution*Caries blood away from heart*Thick, muscular, elastic wall *Blood is at high pressure and flows fast in spurts(pulse waves) *Valves absent (except for semi-lunar valves near the heart) *Blood is oxygenated (except that is pulmonary arteries) There is an explanation video available below. |
|
| 15. |
The graph below shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.Which of the statements below is valid? A. The bird's blood was always warmer than that of the lizard B. The body temperature of the bird varied less than that of the lizard during changes in environmental temperature C. The body temperature of the bird remained constant despite changes in environmental temperature D. The body temperature of the lizard was always close to that of the environmental temperature |
| 16. |
The graph above shows the results of a laboratory investigation which measured the body temperatures of a lizard and a bird under changing artificial conditions. Use it to answer the question.What physiological term can used to describe the regulation of the body temperature of the of the Lizard? A. Homeostasis B. Homoithermy C. Poikilothermy D. Osmoregulation |
|
| 17. |
The reason why hospitals use saline solutions as drip Instead of water is A. because salt is a preservative B. to prevent contamination of the body C. to maintain the composition of body fluids D. to increase the number of blood cells |
|
| 18. |
The part of the ear which contains nerve cells sensitive to sound vibrations is the A. cochlea B. ampulla C. tympanum D. malleus Detailed SolutionThe cochlea (auditory inner ear) transforms the sound in neural message. The function of the cochlea is to transform the vibrations of the cochlear liquids and associated structures into a neural signal.There is an explanation video available below. |
|
| 19. |
Spectacles with convex lenses correct long-sightedness by A. converging the light rays before they enter the eye B. diverging the light rays before they enter the eye C. reducing the light intensity before it enters the eye D. increasing the light intensity before it enters the eye |
|
| 20. |
A seed of a flowering plant can best be described as A. radicle and plumule B. the developed ovule C. the embryo and endosperm D. developed ovary |