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Primary productivity varies from ecosystem to ecosystem. Explain
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1
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1366
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November 12, 2016
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How are productivity, gross primary productivity,
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1
|
1902
|
November 12, 2016
|
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In nature, leeches attach themselves to the cow grazing in the field
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1
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805
|
November 11, 2016
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Why do all the freshwater organisms have contractile vacuoles
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1
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1788
|
November 11, 2016
|
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Why are coral reefs not found in the regions from West Bengal to Andhra Pradesh
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1
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3203
|
November 11, 2016
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A group of students visited a botanical garden
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1
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870
|
November 11, 2016
|
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Ramesh visited a National Park on a school trip where he saw tiger eating a deer
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1
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646
|
November 11, 2016
|
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Himani while watching a TV programme based on life in polar region observed that all animals in polar regions possess larger size
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1
|
699
|
November 11, 2016
|
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In a biology class, teacher was telling the students that the structures/components
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1
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764
|
November 11, 2016
|
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A population of Paramecium caudatum was grown in a culture medium
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1
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3406
|
November 11, 2016
|
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The following diagrams are the age pyramids of different populations
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1
|
1935
|
November 11, 2016
|
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Analysis of age-pyramids for human population
|
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1
|
3270
|
November 11, 2016
|
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List the different attributes that a population has and not an individual organism
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1
|
3363
|
November 11, 2016
|
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Certain species of wasps are seen to frequently visit flowering fig trees
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1
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1902
|
November 11, 2016
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Give reason Population of different species are not capable of breeding with each other
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1
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1334
|
November 11, 2016
|
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Explain co-evolution with reference to parasites and their hosts
|
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1
|
4413
|
November 11, 2016
|
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Name important defense mechanisms in plants against herbivory
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0
|
1306
|
November 11, 2016
|
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What is ‘predation’?
|
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1
|
3549
|
November 11, 2016
|
|
If a population growing exponentially doubles in size in three years
|
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1
|
1535
|
November 11, 2016
|
|
Explain the S-shaped pattern of population growth
|
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1
|
3037
|
November 11, 2016
|
|
Study the population growth curve in the graph given below and answer the following questions
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1
|
4383
|
November 11, 2016
|
|
Study the graph given below
|
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1
|
667
|
November 11, 2016
|
|
Write the importance of measuring the size of a population in a habitat or an ecosystem
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1
|
5269
|
November 11, 2016
|
|
Name the interaction in each of the following
|
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1
|
6685
|
November 11, 2016
|
|
What is mutualism?
|
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1
|
1752
|
November 11, 2016
|
|
What advantage does the sea anemone get in the sea anemone-hermit crab interaction
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1
|
1271
|
November 11, 2016
|
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Lichen is considered as a good example of obligate mutualism. Explain
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0
|
3626
|
November 11, 2016
|
|
Describe the mutual relationship between the fig tree and wasp
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|
1
|
2351
|
November 11, 2016
|
|
In an association of two animal species
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|
1
|
896
|
November 11, 2016
|
|
An orchid plant is growing on the branch of mango tree
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1
|
1958
|
November 11, 2016
|