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Test: Biodiversity & Its Importance


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5 Questions MCQ Test Biology Class 12 | Test: Biodiversity & Its Importance

Test: Biodiversity & Its Importance for NEET 2023 is part of Biology Class 12 preparation. The Test: Biodiversity & Its Importance questions and answers have been prepared according to the NEET exam syllabus.The Test: Biodiversity & Its Importance MCQs are made for NEET 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biodiversity & Its Importance below.
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Test: Biodiversity & Its Importance - Question 1

The active chemical drug reserpine is obtained form​:

Detailed Solution for Test: Biodiversity & Its Importance - Question 1

The “active chemical drug reserpine” is obtained from Rauwolfia.
Reserpine is an “indole alkaloid” obtained from the roots of “Rauwolfia serpentine” and “Rauwolfia vomitoria”. It was first isolated from the dried roots of Rauwolfia in 1950. It is widely used as an antihypertensive and antipsychotic drug. It is an adrenergic blocker.

Rauwolfia serpentina:

Test: Biodiversity & Its Importance - Question 2

Red data Book deals with:

Detailed Solution for Test: Biodiversity & Its Importance - Question 2

The Red Data Book is the state document established for documenting rare and endangered species of animals, plants and fungi as well as some local sub-species that exist within the territory of the state or country. 

Test: Biodiversity & Its Importance - Question 3

Red data books are produced by:

Detailed Solution for Test: Biodiversity & Its Importance - Question 3
  • IUCN is International Union for Conservation of Nature, this system is designed to determine the relative risk of extinctin
  • The main purpose of the IUCN Red List or red data book is to catalogue and highlight those plants, fungi and animals that are facing a higher risk of global extinction (i.e. those listed as Critically Endangered, Endangered and Vulnerable).
Test: Biodiversity & Its Importance - Question 4

The species becomes extinct most easily by:

Detailed Solution for Test: Biodiversity & Its Importance - Question 4

Species of reptiles, amphibians and other vertebrates are becoming extinct in Haiti as deforestation has claimed more than 99 percent of the country's original wooded areas.

Test: Biodiversity & Its Importance - Question 5

Amongst the animal groups given below, which one has the highest percentage of endangered species?

Detailed Solution for Test: Biodiversity & Its Importance - Question 5

According to the IUCN regional red listing guidelines: 
- 12% of all the birds species
- 23% of all mammals species
- 31% of all gymnosperms species
- 32% of all amphibian species

These species face the threat of extinction in the world and have the highest percentage of endangered species, and the threats including habitat loss, fragmentation and degradation, pollution, climate change, and invasive alien species.

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