Shrews and Humming Birds are not capable of regulating body temperature because

1. Thermoregulation is energetically expensive

2. Higher surface area to volume ratio

3. Both 1 and 2

4. Thermoregulation is not a function of energy

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 85%
From NCERT
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Every……….Keoladeo National Park…… in Rajasthan hosts thousands of migratory birds coming from …….

1. Summer, Udaypur, Himachal

2. Winter, Bharatpur, Siberia

3. Summer, Bharatpur, Madhya Pradesh

4. Winter, Jodhpur, Himachal

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 91%
From NCERT
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Bears going into hibernation is an example of

1. Escape in time

2. Escape in winter sleep

3. Diapause

4. Migration

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
From NCERT
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Under unfavorable conditions…….. lakes and ponds are known to enter……… a stage of suspended development.

1. Zoospore, conform

2. Zoospore, diapause

3. Zooplankton, diapause

4. Zooplankton, conform

Subtopic:  Response of Organisms to Abiotic Factors (OLD NCERT) |
 89%
From NCERT
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Migration is what kind of adaptation?

1. Physiological

2. Behavioural

3. Biochemical

4. Physical

Subtopic:  Adaptations (OLD NCERT) |
 66%
From NCERT
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Find the wrong match.

1. Kangaroo Rat: Internal Fat Oxidation

2. Opuntia: Morphological Adaptation

3. Fishes at ocean bottom: Anatomical Adaptation

4. Desert Lizards: Behavioural Adaptation

Subtopic:  Adaptations (OLD NCERT) |
 84%
From NCERT
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Calculate the birth rate of a population which has 20 individuals at time t, after one year 8 individuals have also counted along with those 20.

1. .3

2. 0.2

3. 0.4

4. 0.8

Subtopic:  Population Characters: Natality & Mortality |
 83%
From NCERT
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The size of the population for any species is

1. Dynamic

2. Static

3. Both

4. Always Nt

Subtopic:  Population Dynamic |
 60%
From NCERT
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Population Ecology links

1. Ecology to Evolution

2. Ecology to Genetics

3. Ecology to population Genetics and evolution

4. Ecology to diversity and evolution

Subtopic:  Population Attributes |
 79%
From NCERT
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Under normal circumstances which of the following affects population density most?

1. Nt

2. B

3. I

4. E

Subtopic:  Population: Exponential Growth Model | Population: Logistic Growth Model |
 67%
From NCERT
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