Year :
2014
Title :
Biology
Exam :
JAMB Exam
Paper 1 | Objectives
21 - 30 of 49 Questions
| # | Question | Ans |
|---|---|---|
| 21. |
The major limiting factors of productivity in the aquatic habitat include the following except? A. Food B. Temperature C. Water D. Sunlight Detailed SolutionMost aquatic organisms do not have to deal with extremes of temperature or moisture.Instead, their main limiting factors are the availability of sunlight and the concentration of dissolved oxygen and nutrients in the water. There is an explanation video available below. |
|
| 22. |
Which of the following group of organisms feeds directly on green plants? A. Primary Consumers B. Secondary Consumers C. Producers D. Decomposers |
|
| 23. |
A characteristic feature of tropical rainforest is that it A. Contains trees with narrow leaves B. Contains large number of plant species C. Contains fewer number of plant species D. Has total annual rainfall of less than 50cm |
|
| 24. |
The study of how and why population size change over time is A. Population estimation B. Population dynamics C. Population ecology D. Population Cycle |
|
| 25. |
A severe and long dry season is a characteristic feature of A. Sahel Savanna B. Mangrove Swamps C. Sudan Savanna D. Guinea Savanna |
|
| 26. |
Which of the following is a nitrogen-fixing blue-green algae of soil? A. Rhizobium B. Nitrosomonas C. Clostridium D. Anabaena Detailed SolutionAnabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants.There is an explanation video available below. |
|
| 27. |
The soil with highest water-retaining capacity is A. Clayey Soil B. Stoney soil C. Sandy soil D. Loamy Soil |
|
| 28. |
The causative agent of Poliomyelitis is A. Virus B. Fungus C. Protozoan D. Bacterium |
|
| 29. |
One of the ways of controlling noise pollution in urban areas is A. by siting industries away from residential areas B. that fuel should be completely combusted by engines C. by planting trees on both sides of the road D. by wearing ear devices |
|
| 30. |
A constituent of the exhaust fumes from electricity generating sets which causes serious pollution is A. Carbon (II) Oxide B. Water Vapour C. Ozone D. Carbon (IV) Oxide |
| 21. |
The major limiting factors of productivity in the aquatic habitat include the following except? A. Food B. Temperature C. Water D. Sunlight Detailed SolutionMost aquatic organisms do not have to deal with extremes of temperature or moisture.Instead, their main limiting factors are the availability of sunlight and the concentration of dissolved oxygen and nutrients in the water. There is an explanation video available below. |
|
| 22. |
Which of the following group of organisms feeds directly on green plants? A. Primary Consumers B. Secondary Consumers C. Producers D. Decomposers |
|
| 23. |
A characteristic feature of tropical rainforest is that it A. Contains trees with narrow leaves B. Contains large number of plant species C. Contains fewer number of plant species D. Has total annual rainfall of less than 50cm |
|
| 24. |
The study of how and why population size change over time is A. Population estimation B. Population dynamics C. Population ecology D. Population Cycle |
|
| 25. |
A severe and long dry season is a characteristic feature of A. Sahel Savanna B. Mangrove Swamps C. Sudan Savanna D. Guinea Savanna |
| 26. |
Which of the following is a nitrogen-fixing blue-green algae of soil? A. Rhizobium B. Nitrosomonas C. Clostridium D. Anabaena Detailed SolutionAnabaena is a genus of filamentous cyanobacteria that exist as plankton. They are known for nitrogen-fixing abilities, and they form symbiotic relationships with certain plants.There is an explanation video available below. |
|
| 27. |
The soil with highest water-retaining capacity is A. Clayey Soil B. Stoney soil C. Sandy soil D. Loamy Soil |
|
| 28. |
The causative agent of Poliomyelitis is A. Virus B. Fungus C. Protozoan D. Bacterium |
|
| 29. |
One of the ways of controlling noise pollution in urban areas is A. by siting industries away from residential areas B. that fuel should be completely combusted by engines C. by planting trees on both sides of the road D. by wearing ear devices |
|
| 30. |
A constituent of the exhaust fumes from electricity generating sets which causes serious pollution is A. Carbon (II) Oxide B. Water Vapour C. Ozone D. Carbon (IV) Oxide |