Biodiversity and its Conservation Additional Practice Test

12th Standard Zoology — Biodiversity and its Conservation: Additional Online Practice Test

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India possesses approximately how many genetic variants of paddy (rice) and mango respectively?

A.50,000 paddy variants and 1,000 mango variants B.1,000 paddy variants and 50,000 mango variants C.5,000 paddy variants and 100 mango variants D.20,000 paddy variants and 500 mango variants

The variation in the concentration and potency of reserpine in the medicinal plant Rauwolfia vomitoria growing in different Himalayan ranges is an example of which level of biodiversity?

A.Species diversity B.Ecosystem diversity C.Genetic diversity D.Community diversity

Which index of biodiversity is obtained by comparing the number of species unique to each of two adjacent ecosystems?

A.Alpha diversity B.Beta diversity C.Gamma diversity D.Delta diversity

In the species-area relationship on a logarithmic scale, what is the range of the regression coefficient (Z-value) when analyzing species richness across very large areas like entire continents?

A.0.1 to 0.2 B.0.2 to 0.4 C.0.6 to 1.2 D.1.5 to 2.0

In Paul Ehrlich's 'Rivet Popper Hypothesis', what do the rivets on the wings of an aeroplane represent?

A.Endangered species B.Invasive alien species C.Keystone species D.Extinct species

Which biogeographical zone of India covers the smallest area percentage of about 0.3%?

A.Western Ghats B.Coastal Region C.Andaman and Nicobar Islands D.Trans Himalaya

The endemic Nilgiri tahr, which is the state animal of Tamil Nadu, is a characteristic species of which biogeographical zone of India?

A.Himalayas B.Western Ghats C.Semi-arid zones D.Deccan Peninsula

Tropical rainforests, which once covered 14% of the Earth's land surface, have now been reduced to cover no more than what percentage?

A.10% B.8% C.6% D.4%

What percentage of New Zealand's wetlands have been destroyed and cleared to cultivate soya beans and raise grass for beef cattle?

A.50% B.70% C.90% D.95%

Q10

The invasive Tilapia fish (Oreochromis mosambicus) was introduced into Kerala's inland waters in 1952 from which region?

A.East coast of South Africa B.East Africa's Lake Victoria C.North America D.South America

Q11

The introduction of which predatory fish into Lake Victoria in East Africa led to the extinction of over 200 species of native cichlid fish?

A.African catfish B.Tilapia C.Nile Perch D.Sucker fish

Q12

The Calvaria tree of Mauritius Island faced an imminent danger of extinction after the Dodo bird became extinct because the Dodo was required to:

A.Pollinate the tree's flowers B.Disperse the seeds to distant places C.Make the tough seed endocarp permeable for germination D.Provide specific nitrogenous waste as fertilizer

Q13

In which year was the International Union for Conservation of Nature (IUCN) established, and where is its headquarters located?

A.1948, Gland, Switzerland B.1961, Morges, Switzerland C.1972, Stockholm, Sweden D.1992, Rio de Janeiro, Brazil

Q14

Where was 'Project Tiger' launched by the Government of India in the year 1973?

A.Kaziranga National Park, Assam B.Jim Corbett National Park, Uttarakhand C.Mudumalai Wildlife Sanctuary, Tamil Nadu D.Periyar Wildlife Sanctuary, Kerala

Q15

In which year was the National Biodiversity Authority (NBA) of India established, and where is its headquarters located?

A.1992, New Delhi B.2002, Bengaluru C.2003, Chennai D.2006, Dehradun

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About this Biodiversity and its Conservation test

This free online practice test covers Biodiversity and its Conservation from the 12th Standard Zoology (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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