Just as a person moving from Delhi to Shimla to escape the heat for the duration of hot summer, thousands of migratory birds from Siberia and other extremely cold northern regions move to:
1. Western Ghat
2. Meghalaya
3. Corbett National Park
4. Keoladeo National Park
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA sedentary sea anemone gets attached to the shell lining of a hermit crab. The association is :
1. Symbiosis
2. Commensalism
3. Amensalism
4. Ectoparasitism
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is :
1. 15
2. 05
3. zero
4. 10
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAccording to Darwin, organic evolution is due to:
1. | Interspecific competition. |
2. | Competition within closely related species. |
3. | Reduced feeding efficiency in one species due to the presence of interfering species. |
4. | Intraspecific competition. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyI. | Burrowing in soil to escape high temperature |
II. | Losing heat rapidly from the body during high temperature |
III. | Bask in the sun when the temperature is low |
IV. | Insulating body due to the thick fatty dermis |
1. | (I) and (III) | 2. | (II) and (IV) |
3. | (I) and (II) | 4. | (III) and (IV) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat type of human population is represented by the following age pyramid?
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | Human foetus developing inside the uterus draws nourishment from the mother |
2. | Head louse living on the human scalp as well as laying eggs on human hair |
3. | The cuckoo (koel) lays its eggs in a crow's nest |
4. | The female Anopheles bites and sucks blood from humans |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyStudy the four statements (a–d) given below and select the two correct ones out of them –
a. A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers
b. Predator star fish Pisaster helps in maintaining species diversity of some invertebrates
c. Predators ultimately lead to the extinction of prey species
d. Production of chemicals such as nicotine, strychnine by the plants are metaboilic disorders
The two correct stament are-
1. a and d
2. a and b
3. b and c
4. c and d
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe figure given below is a diagrammatic representation of the response of organisms to abiotic factors. What do (a), (b) and (c) represent, respectively?
(a) |
(b) |
(c) |
|
1. |
Regulator |
Conformer |
Partial regulator |
2. |
Conformer |
Regulator |
Partial regulator |
3. |
Regulator |
Partial regulator |
Conformer |
4. |
Partial regulator |
Regulator |
Conformer |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations. A and B are twenty years apart. Select the correct interpretation about them:
Interpretations
1. | 'A' is more recent and shows a slight reduction in the growth rate |
2. | 'B' is an earlier pyramid and shows stabilised growth rate |
3. | 'B' is more recent showing that the population is very young |
4. | 'A' is the earlier pyramid and no change has occurred in the growth rate |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology