Year :
2002
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
11 - 20 of 50 Questions
| # | Question | Ans |
|---|---|---|
| 11. |
The most common means of transmiting the Acquired Immune Deficiency Syndrome (AIDS) is A. from mother to child B. through blood transfusion C. through sexual intercourse D. through the sharing of needles |
C |
| 12. |
Plants tend to prevent overcrowding by means of efficient A. water uptake B. seed germination C. pollination D. seed dispersal |
D |
| 13. |
The physical and climatic factors of a region primarily determine the A. kinds of animal inhabiting the area B. types of plants found in the area C. nature of the soil in that region D. community of organisms in the region |
D |
| 14. |
A step in the movement of energy through an ecosystem is a description that best fits the term A. food chain B. trophic level C. pyramid of numbers D. food web |
B |
| 15. |
In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m2 quadrat. What is the density of the plants in the field? A. 1.2 per m2 B. 2.4 per m2 C. 4.8 per m2 D. 9.6 per m2 |
A |
| 16. |
The supporting tissue in xylem is most poorly developed in A. mangrove swamp plants B. grassland plants C. submerged water plants D. desert plants |
C |
| 17. |
The addition of lime to clayed soil serves to A. aid water retention B. close up the texture C. prevent water logging D. improve capillary action |
D |
| 18. |
The excessive use of agro-chemicals could lead to the pollution of A. the lithosphere B. the atmosphere C. fresh water D. space |
C |
| 19. |
In a population study using the transect method, a student is likely to record the highest number of species in? A. a tropical rain forest B. a guinea savanna C. a sahel savanna D. an estuarine swamp Detailed SolutionA transect is usually used to investigate a gradual change in a habitat rather than to simply estimate the number of organisms within it.The characteristics of the Guinea Savanna include: the largest of all vegetation belts in Nigeria; tall grasses; few scattered trees; |
|
| 20. |
In his theory of evolution, Darwin implied that A. the struggle for existence among living organisms is sporadic B. the most successful organisms are those that best adapt to their environment C. organs of the body which are not regularly used by an organism will disappear D. any traits acquired by an organism during its lifetime can be passed on its offspring |
B |
| 11. |
The most common means of transmiting the Acquired Immune Deficiency Syndrome (AIDS) is A. from mother to child B. through blood transfusion C. through sexual intercourse D. through the sharing of needles |
C |
| 12. |
Plants tend to prevent overcrowding by means of efficient A. water uptake B. seed germination C. pollination D. seed dispersal |
D |
| 13. |
The physical and climatic factors of a region primarily determine the A. kinds of animal inhabiting the area B. types of plants found in the area C. nature of the soil in that region D. community of organisms in the region |
D |
| 14. |
A step in the movement of energy through an ecosystem is a description that best fits the term A. food chain B. trophic level C. pyramid of numbers D. food web |
B |
| 15. |
In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m2 quadrat. What is the density of the plants in the field? A. 1.2 per m2 B. 2.4 per m2 C. 4.8 per m2 D. 9.6 per m2 |
A |
| 16. |
The supporting tissue in xylem is most poorly developed in A. mangrove swamp plants B. grassland plants C. submerged water plants D. desert plants |
C |
| 17. |
The addition of lime to clayed soil serves to A. aid water retention B. close up the texture C. prevent water logging D. improve capillary action |
D |
| 18. |
The excessive use of agro-chemicals could lead to the pollution of A. the lithosphere B. the atmosphere C. fresh water D. space |
C |
| 19. |
In a population study using the transect method, a student is likely to record the highest number of species in? A. a tropical rain forest B. a guinea savanna C. a sahel savanna D. an estuarine swamp Detailed SolutionA transect is usually used to investigate a gradual change in a habitat rather than to simply estimate the number of organisms within it.The characteristics of the Guinea Savanna include: the largest of all vegetation belts in Nigeria; tall grasses; few scattered trees; |
|
| 20. |
In his theory of evolution, Darwin implied that A. the struggle for existence among living organisms is sporadic B. the most successful organisms are those that best adapt to their environment C. organs of the body which are not regularly used by an organism will disappear D. any traits acquired by an organism during its lifetime can be passed on its offspring |
B |