NPTEL Wild Life Ecology Week 4 Assignment Answers 2024
1. consider the food chain
grass –> grasshopper –> frog –> snake –> hawk
as we move up the food chain,
- available energy decreases
- available energy increases
- available energy remains same
- available energy is zero everywhere
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2. consider the food chain
grass –> grasshopper –> frog –> snake –> hawk
in the food chain
- hawk is producer
- hawk is consumer and carnivore
- hawk is consumer and herbivore
- hawk is decomposer
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3. trees –> birds –> parasites –> hyperparasites represent
- upright pyramid of numbers
- inverted pyramid of numbers
- spindle pyramid of numbers
- dumb-bell pyramid of numbers
Answer :-
4. consider the food chain
grass –> grasshopper –> frog –> snake –> hawk
in this food chain
- frog is producer
- frog is consumer and carnivore
- frog is consumer and herbivore
- frog is decomposer
Answer :-
5. at the compensation point
- photosynthesis = respiration
- photosynthesis < respiration
- photosynthesis > respiration
- photosynthesis = 0
Answer :-
6. tree –> frugivorous birds –> hawk represents
- upright pyramid of numbers
- inverted pyramid of numbers
- spindle pyramid of numbers
- dumb-bell pyramid of numbers
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7. glacial lakes are typical examples of
- eutrophic lakes
- hypereutrophic lakes
- oligotrophic lakes
- mesotrophic lakes
Answer :-
8. consider the food chain
grass –> grasshopper –> frog –> snake –>hawk
in this food chain
- more numbers of hawks than grasshoppers can be supported
- more numbers of grasshoppers than hawks can be supported
- equal numbers of hawks and grasshoppers can be supported
- non of these
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9. if we all become vegetarians, we’ll be able to support our large populations. this can be explained through
- 10% rule
- 1% rule
- trophic cascades
- biodiversity
Answer :-
10. net primary productivity is given by
- APAR x LUE
- APAR + LUE
- APAR – LUE
- APAR / LUE
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