ORGANISMS AND THE ENVIRONMENT biology MCQ’s questions answers

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ORGANISMS AND THE ENVIRONMENT

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A non flowering plant of submerged stage is ..... [Guj.C.E.T.2010]
A
Vallisneria
B
Ceratophyllum
C
Chara
D
Hydrilla
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mycorrhiza is a .....
A
Parasitic relation between fungus and root
B
Mutualistic relation between fungus and whole plant
C
Mutualistic relation between fungus and root
D
Parasitic relation between fungus and plant
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Number of immigration is more than emigration and death is lower than natality. Growth curve of population will show ..... [Har. P.M.T. 2000]
A
Exponential phase
B
Lag phase
C
Declining phase
D
Steady phase
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is correct for secondary succession ..... [C.B.S.E 2011]
A
It follows primary succession
B
It is similar but faster than primary succession
C
It begins on bare rock
D
It occurs on deforested site
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one is first colonizer of bare rock/pioneer community in Xerarch? ..... [Kerala 2012]
A
Annual herb
B
Perennial herb
C
Lichen
D
Scrub
There are 5 questions to complete.

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