NEETprep Bank NEET Botany Organisms and Populations Questions Solved


Homeostasis is 
(a) tendency to change with change in environment
(b) tendency to resist change
(c) disturbance in regulatory control
(d) plants and animals extracts used in homeopathy

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Identify the biome that is not correctly matched with the physical parameters given in corresponding Column II and Column III:

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The most ecologically relevant environmental factor is:

1. temperature

2. Water

3. Light

4. Soil

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If global warming continues, how would the distributional range of some species be affected?

1. There will be a poleward shift

2. There will be an equatorial shift

3. No change expected for any species

4. Shift to marine water from land

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Many freshwater animals cannot live for long in sea water and vice versa because of:

1. Buoyancy related problems

2. Lack of impermeable skins

3. Thermolabile enzymes

4. Osmotic considerations

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Which of the following algae is likely to be found in the deepest waters?

(a) Green

(b) Brown

(c) Red

(d) All are found at equal depths

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When exposed to cold temperatures, which of the following is responsible for maintaining constant body temperature in humans?

1. Vasoconstriction and shivering

2. Vasodilation and shivering

3. Vasodilation and sweating

4. Vasoconstriction and sweating

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Under unfavorable conditions, many zooplankton species in lakes and ponds are known to enter a stage of suspended development called as:

1. Dormancy

2. Hibernation

3. Aestivation

4. Diapause

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The given age pyramid represents a:

1. Fast expanding population

2. Slowly expanding population

3. Stable population

4. Declining population

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Darwinian fitness is represented by:

1. Low r value

2. High r value

3. High K value

4. Low K value

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