Biodiversity Subcategories

Biodiversity

Reserpine is obtained from:

A. Dioscuri
B. Taxus
C. Rauvolfia
D. Papaver

The approximate number of plant species, according to WCMC, that have become extinct in the last four centuries:

A. 834
B. 483
C. 533
D. 384

The causes of loss of biological diversity are:

A. Over hunting is perhaps the most obvious direct cause of extinction in animals, as it has affected several large and well-known species
B. Genetic diversity as represented by genetic differences between discrete populations with wild species, is liable to reduction as result of the same factors affecting species
C. A major, though at present largely unpredictable, change in natural environments is likely to occur within the next century as a result of large-scale changes in global climate and weather patterns
D. All of the above

WCU stands for

A. Wild conservation unit
B. Wild conservation union
C. World communiction union
D. World conservation union

The rate of replacement of species composition with the change in the environment constitutes:

A. Gamma diversity
B. Beta diversity
C. Community diversity
D. Ecosystem diversity

Biological diversity resources are:

A. Food
B. Pharmaceuticals
C. Both (a) & (b)
D. None of these

On the basis of genetic diversity, the following are differentiated with in a species:

A. Ecads
B. Ecotypes
C. Populations
D. Communities

The most significant aspect of biodiversity is:

A. Food
B. Drug
C. Industrial use
D. Maintenance of ecosystem

Which of the following is not a reason of unnatural extinction of species?

A. Environmental pollution
B. Soil erosion
C. Afforestation
D. Increased urbanization

The types of bio-diversity are:

A. Genetic diversity
B. Species diversity
C. Ecosystem diversity
D. All of the above