Rabbit is Crepuscular, Animals have calcareous shells in area having No relation with pH, Food web Increase the stability of ecosystem

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Free Online Mock Biology Multiple Choice Test on Eco Systems

Sub Category : Eco Systems	Test : 4	Time Left :
1. Rabbit is
(1) Nocturnal (2) Vesperal (3) Crepuscular (4) Diurnal.
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2. Animals have calcareous shells in area having
(1) Acnic pH (2) Neutral pH (3) Alkaline pH (4) Both (2) and (3) (5) No relation with pH.
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3. Food web
(1) Increase the stability of ecosystem (2) Decrease the stability of ecosystem (3) Does not effect stability (4) None.
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4. In aquatic habitat pyrammid of biomass is ?
(1) Spindle shaped (2) Upright (3) Inverted (4) None.
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5. Producers are absent in ?
(1) Photic region (2) Aphotic region (3) Abyssal Zone (4) coastal region.

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Free Online Mock Biology Multiple Choice Test on Eco Systems