Roots of Juglans migra, Symbiosis, Pioneer lichene is, hydrosphere is Plankton, Biotic potential 12,

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Free Online Mock Biology Multiple Choice Test on Biotic Community

Sub Category : Biotic Community	Test : 3	Time Left :
1.Roots of Juglans migra produce a chemical which is toxic to
(1) Appel (2) Tomato (3) Alfalfa (4) All
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2.Symbiosis term was given by
(1) Haeckel (2) Reiter (3) Debaxy (4) Leeuvenhoek
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3.Pioneer lichene is usually
(1) Grapines (2) Rhizocarpon (3) Both (1) and (2) (4) None
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4.Pioneer stage of hydrosphere is?
(1) Submerged (2) Floating (3) Plankton (4) Reed swamp"
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5.Biotic potential of human species is estimated...per female during required period of 16--44 years?
(1) 12 (2) 14 (3) 18 (4) 3

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Free Online Mock Biology Multiple Choice Test on Biotic Community