31.  At Each trophic level, in which form energy is lost ?

A. Heat

B. Chemical

C. Light

D. None

Answer : Option A

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32.  Which Source of eutrophication is the modern source of phosphorus ?

A. Detergent

B. Fertilizer

C. Faecal of animal

D. Rivers

Answer : Option A

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33.  It helps in absorbtion of phosphorous ?

A. Leaves

B. Mycorriza

C. Root

D. Stem

Answer : Option B

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34.  In a day, How many times an individual inspire and expire (breathing) ?

A. 10,000

B. 20,000

C. 40,000

D. 50,000

Answer : Option C

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35.  What percentage of total metabolic energy is produced through fermentation of lactic acid ?

A. 80%

B. 70%

C. 100%

D. 40%

Answer : Option B

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36.  Which adaptation is observe only in xerophytes ?

A. CAM

B. TCA

C. Hatch-Slack

D. C3 cycle

Answer : Option A

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37.  Which of the following opteon is correct for CO2 absorption in CAM ?

A. During night

B. Only at midnight

C. During day time

D. Morning

Answer : Option A

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38.  

It- (I) Liver? Liver lobule
(II) kidney? Uriniferous tubule
(III) Ecolog:y ? X
than What does"x" represent ?

A. Biotic community

B. Ecosystem

C. Population

D. All of the given

Answer : Option B

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39.  

What can be Explained through following chart ?
Birds        25 ppm
↑                 ↑
Big fishes 2ppm
    ↑                ↑
Small fishes 0.5ppm
    ↑                    ↑
Zoo Plankton 0.5ppm
    ↑                      ↑
Phyto planktons 0.04 ppm
      ↑                       ↑
DDT in water 0.003ppb

(i) Biological magnification concentration of DDT
(ii) Aquatic food web
(iii) Food chain
(iv) DDT is non degrable
(v) One aquatic ecosystem

A. (i), (ii), (iii)

B. (i), (iii), (iv)

C. (ii), (iii), (iv)

D. (iii), (iv), (v)

Answer : Option B

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40.  

With reference to precess of decomposition arrange the following in proper sequence.
(1) Deadmaterial ? Predation by detrivore ? digestion in animals ? defecation ?mixes
with soil.
(2) MIneralization and symthesis of fertilization of substances.
(3) Complex substance Extracellular ?(up- Extracellular , Down- enzymes )

enzymes Ions & salts (simple sub.)
(4) Transport of soluble substances in the inner layer of soil

A. 1,2,3,4

B. 1,4,3,2

C. 3,1,4,2

D. 1,3,4,2

Answer : Option B

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