1:   Adaptation may be -------
Options:
  1. physiological
  2. morphological
  3. behavioral
  4. all of these

Answer: Option 4

Explanation:

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2:   The exchange pool in the carbon cycle is -----
Options:
  1. water
  2. soil
  3. sedimentary rock
  4. atmosphere

Answer: Option 4

Explanation:

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3:   Organisms are classified into trophic levels according to --------
Options:
  1. their habitat
  2. how much they weigh
  3. the source of their nutrients
  4. all of the above

Answer: Option 3

Explanation:

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4:   The second stage of hydrosere is occupied by the plants like --------
Options:
  1. Salix
  2. Azolla
  3. Vallisneria
  4. Typha

Answer: Option 3

Explanation:

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5:   'Homeostasis'in an ecosystem refers to ---------
Options:
  1. feedback mechanism
  2. influence of production
  3. state of equilibrium
  4. all of the above

Answer: Option 3

Explanation:

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6:   Select the area which will take minimum time for succession?
Options:
  1. Newly created reservoir
  2. Bare rock
  3. Buried or cut forest
  4. all of the above

Answer: Option 3

Explanation:

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7:   In an ecosystem ,the cycling of nutrients is known as -------
Options:
  1. Geochemical cycle
  2. Biogeochemical cycle
  3. Chemical cycle
  4. Geochemical cycle

Answer: Option 2

Explanation:

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8:   Population termed r-strategists
Options:
  1. have J shaped growth curves
  2. have type 111 survivorship curve
  3. are usually pioneer species
  4. all of the above

Answer: Option 4

Explanation:

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9:   Newly developed pathogens are more damaging to host because host are called ------
Options:
  1. distant pathogen
  2. cronic pathogen
  3. genetic improved pathogens
  4. instant pathogen

Answer: Option 4

Explanation:

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10:   Which competition is more intense?
Options:
  1. interspecific competition
  2. intraspecific competition
  3. both of the above
  4. none of the above

Answer: Option 2

Explanation:

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If you can't change your fate, change your attitude.
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