WBJEE SERIES Biology
Eco System
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
2
2009 1
2007 Chapter Questions 3 MCQs
01
PYQ 2007
medium
biology ID: wbjee-20
Which of the following is the most productive ecosystem ?
1
Estuary
2
Open sea
3
Desert
4
Mountain
02
PYQ 2009
easy
biology ID: wbjee-20
Trophic levels in ecosystem is formed by
1
only bacteria
2
only plants
3
only herbivores
4
organisms linked in food chain
03
PYQ 2009
medium
biology ID: wbjee-20
Which of the following is an example of man-made ecosystem?
1
Herbarium
2
Aquarium
3
Tissue culture
4
Forest