BSEB Inter Exam Biology Chapter Wise Objective MCQ Question in English
13. ORGANISM AND POPULATION
1. A moss plant is unable to complete its life cycle in a dry environment due to :
(A) scarcity of water
(B) External fertilization
(C) Plenty of water
(D) None of these
| Answer :- (A) |
2. Which plant does not grow in hydrophytic environment ?
(A) Hydrilla
(B) Trapa
(C) Nelumbo
(D) Acacia
| Answer :- (D) |
3. Exponential population growth is :
(A) dN/dt = rN
(B) dt/dN = rN
(C) dN/rN = dt
(D) rN/dN = dt
| Answer :- (A) |
4. A high density of elephant population in an area can result in:
(A) Interspecific competition
(B) Intraspecific competition
(C) Mutualism
(D) Predation on the another
| Answer :- (B) |
5. Geometric representation of age structure is a characteristic of :
(A) Landscape
(B) Ecosystem
(C) Biotic community
(D) Population
| Answer :- (D) |
6. Climax community is present in which area ?
(A) In equilibrium
(B) In transition
(C) Bare land
(D) None of these
| Answer :- (A) |
7. Allelopathy is due to secretion of :
(A) Pheromone
(B) Toxin
(C) Chemicals
(D) Poison
| Answer :- (B) |
8. Root cap is deficient in :
(A) Hydrophytes
(B) Halophytes
(C) Xerophytes
(D) Heliophytes
| Answer :- (A) |
9. Name the habitat in which decimal soil temperature vary most :-
(A) Forest
(B) Grassland
(C) Shrubland
(D) Desert
| Answer :- (D) |
10. Which of the following forest plants control the light conditions at the ground ?
(A) Lianas and Climbers
(B) Shrubs
(C) Tall trees
(D) Herbs
| Answer :- (C) |
11. Which one of the following organisms reproduces sexually only once in its life time?
(A) Banana
(B) Mango
(C) Tomato
(D) Eucalyptus
| Answer :- (A) |
12. “Theory of Human Population” was written by :
(A) Charles Darwin
(B) A.R. Wallace
(C) T.R. Malthus
(D) Lamarch
| Answer :- (C) |
13. Oviparious are :
(A) hen
(B) snake
(C) crocodile
(D) all of these
| Answer :- (D) |
14. The maximum growth rate occurs in: .
(A) Lag phase
(B) Exponential phase
(C) Stationary phase
(D) Senescent phase
| Answer :- (B) |
15. Which plant is found in mangroove zone ?
(A) Rhizophora
(B) Acacia
(C) Pinus
(D) Tectona grandis
| Answer :- (A) |
16. Soil transported by air is :
(A) Alluvial
(B) Glacial
(C) Colluvial
(D) Eolian
| Answer :- (D) |
17. Hermaphrodite organism is :
(A) hen
(B) snake
(C) both ‘A’ and ‘B’
(D) earthworm
| Answer :- (D) |
18. Locust is :
(A) Producer
(B) Primary consumer
(C) ‘A’ and ‘B’ both
(D) None of these
| Answer :- (B) |
19. Population explosion results in :
(A) Reproduction in Income
(B) Reproduction in land
(C) Reproduction in Minerals
(D) All of these
| Answer :- (D) |
20. Appearance of antibiotic resistance bacteria is an example
(A) Adaptive radiation
(B) Transduction
(C) Pre existing variation
(D) Divergent evolution
| Answer :- (C) |
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