To live in groups is beneficial because :
  • feeling of security
  • can obtain food easily
  • Partner is available for mating
  • All the above

D.

All the above
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Fill in the blanks with suitable words :

1. The optimal capacity of the organism to produce offspring is called........................

2. Rapid increase in human population is called........................

3. Mathematical expression of the growth of population is called........................

4. Yeast cells grown in a culture medium show........................growth curve.

5. Main cause of population explosion is........................


Biotic potential , Population explosion , Growth Curve , Sigmoid , Rapid decline in death rate
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Mammals from colder climates have shorter ears and limbs to minimize heat loss. This rule is called........................ 

Allen’s Law.
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Majority of organisms are restricted to a narrow range of temperature, such organisms are called ........................ 

Stenothermal animals.
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The organisms ideally try to maintain the constancy of its internal environment by the process called........................

Homeostasis.
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A few organisms can tolerate and thrive in a wide range of temperature, they are called........................

Eurythermal animals.
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