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Biodiversity And Its Importance Free Doubts and Solutions

CBSE - XII Science - Biology - Biodiversity and Conservation

Please suggest me a proper timetable for preparing well for both NEET and board exams.I am not free from 7:00am to 7:00pm everyday due work from school and tuitions. I am worried as I have not started preparing for NEET yet.Please help.

Asked by sunil2791 2nd August 2017, 6:47 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

What is the scientific term for measurement of species diversity if:
 
a) no. of species per unit area are measured?
 
b) relative abundance with which each species id represented in an area is measured?

Asked by subratabanerjee686 19th November 2015, 10:54 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

a) India has more than 50000 different strains of rice and 1000 varieties of mangoes.
b) Western Ghats have a greater Amphibian diversity than the Eastern Ghats.
 
What do you infer from above 2 statements?

Asked by subratabanerjee686 19th November 2015, 10:33 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Alien species are a threat to native species. Justify taking examples of an animal and a plant alien species.

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Give three hypotheses for explaining why tropics show great levels of species richness. 

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

What is the ecological importance of biodiversity?

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Why are (i) alien species invasion and (ii) loss of habitat and fragmentation considered to be the major cause of loss of biodiversity? Explain with the help of one example each.

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Explain giving one example, how co-extinction is one of the causes of loss of biodiversity. List the three other causes also. 

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

What does the term genetic diversity refer to? What is the significance of large genetic diversity in a population? 

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

India has more than 50,000 strains of rice. Mention the level of biodiversity it represents.

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Write the major causes of biodiversity losses.

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Define biodiversity. Write three forms of biodiversity.

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

Why is genetic variation important in the plant Rauwolfia vomitoria?

Asked by Topperlearning User 10th June 2014, 3:26 PM
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CBSE - XII Science - Biology - Biodiversity and Conservation

What is the difference between endemic and exotic species? 

Asked by Topperlearning User 10th June 2014, 3:26 PM
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