Tag: animal senses

Questions Related to animal senses

Select the incorrectly matched pair.

evs - i the environment and us threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. UNESCO = United Nations Educational Scientific and Cultural Organisation.

  2. CITES = Convention in International Trade in Elite Species.

  3. IUCN = International Union of Conservation for Nature and Natural Resources.

  4. WWF = World Wilde Fund for Nature.

Show answer
Correct Option: B
Explanation:

CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty to protect endangered plants and animals.

So, the correct option is 'CITES = Convention in International Trade in Elite Species.'

Select the correct term for the following definitions (i, ii, iii, iv).
(i) The taxon is liable to become extinct if not allowed to realise its full biotic potential by providing protection from exotic species/human exploitation/ habitat deterioration/ depletion of food.
(ii) The taxon has been completely eliminated or died out from earth, e.g., Dodo.
(iii) The taxon is facing a high risk of extinction in the wild in the near future due to decrease in its habitat, excessive predation or poaching.
(iv) They are species with naturally small populations, either localised or thinly scattered, which are always at risk from pests/pathogens/predators/exotic species.

commercial applications environmental equilibrium threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. (i) - Threatened; (ii) - Extinct; (iii) - Endangered; (iv) - Rare

  2. (i) - Endangered; (ii) - Extinct; (iii) - Threatened; (iv) - Rare

  3. (i) - Extinct; (ii) - Rare; (iii) - Threatened; (iv) - Endangered

  4. (i) - Threatened; (ii) - Extinct; (iii) - Rare; (iv) - Endangered

Show answer
Correct Option: A
Explanation:

(i) A threatened species is a plant, animal, or other living organism that is becoming rare and that may become in danger of extinction if current trends continue. The international Union for the Conservation of Nature (IUCN) divides threatened species into three categories: vulnerable species, endangered species and critically endangered species. The US National Wildlife federation on the other hand, distinguishes between threatened and endangered species.

(ii) Extinction of a particular animal or plant species occurs when there are no more individuals of that species alive anywhere in the world - the species has died out. This is a natural part of evolution. But sometimes extinctions happen at a much faster rate than usual.
(iii) An endangered species is a species which has been categorized as very likely to become extinct. Endangered (EN), as categorized by the International Union for Conservation of Nature (IUCN) Red List, is the second most severe conservation status for wild populations in the IUCN's schema after Critically Endangered (CR). Many nations have laws that protect conservation-reliant species: for example, forbidding hunting, restricting land development or creating preserves. Population numbers, trends and species' conservation status can be found at the lists of organisms by population.
(iv) A rare species is a group of organisms that are very uncommon, scarce, or infrequently encountered. This designation may be applied to either a plant or animal taxon, and is distinct from the term endangered or threatened. Designation of a rare species may be made by an official body, such as a national government, state, or province. The term more commonly appears without reference to specific criteria. The IUCN does not normally make such designations, but may use the term in scientific discussion. Rarity rests on a specific species being represented by a small number of organisms worldwide, usually fewer than 10,000. However, a species having a very narrow endemic range or fragmented habitat also influences the concept. Almost 75% of known species can be classified as "rare'.
So the correct option is '(i)- threatened, (ii)- extinct, (iii)- endangered, (iv)- rare'.

Sacred groves are found in Khasi and Jaintia hills of (i), Aravalli hills of (ii), Western Ghat religions of (iii).

evs - i the environment and us threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. (i) - Meghalaya; (ii) - Rajasthan; (iii) - Karanataka and Maharashtra

  2. (i) - Meghalaya and Maharashtra; (ii) - Rajasthan; (iii) - Madhya Pradesh

  3. (i) - Madhya Pradesh; (ii) - Rajasthan; (iii) - Meghalaya

  4. (i) - Rajasthan; (ii) - Meghalaya; (iii) - Karanataka and Maharashtra

Show answer
Correct Option: A
Explanation:

(i) In Meghalaya sacred groves represent a long tradition of environmental conservation based on indigenous knowledge by the tribal communities. They are among the few least disturbed forest patches which are serving as the natural treasure house of biodiversity and a refuge for a large number of endemic, endangered and rare taxa. The general term for sacred groves in the Khasi Hills is 'Khlaw Kyntang' or 'Law Kyntang' or 'Law Lyngdoh' while in the Jaintia Hills it is called 'Khloo Blai'. The sacred groves in the Khasi Hills and Jaintia Hills District are fundamentally based on the traditional religious belief of the tribals i.e., Khasis and Pnars, which is called Seng Khasi and Niam Tre respectively.

(ii) Sacred Groves are found from the western part of Rajasthan to the east of the Aravalli range. These groves are known under various names in Rajasthan as sacred groves (deora, malvan, deorai, rakhat bani, oran, etc.), sacred corridors (deo ghats), temple forests (mandir van) and sacred gardens (baugh). Brandis, as early as 1887, gave initial information on sacred groves of Aravallis. He wrote, 'though very few papers have been published on sacred groves, this does not mean that such areas do not abound in India'. 
(iii) Western Ghats also known as Sahyadri (Benevolent Mountains) is a mountain range that runs parallel to the western coast of the Indian peninsula. Forest clearance was inevitable for farming and yet, there was an overwhelming belief in the sacredness of the woods.  They were important tracts of pre-colonial forest conservation in the Western Ghats. Myriad relics of such groves, exist even today all over the Western Ghats. They may be called Devrai in Maharashtra, Devarkadu in Kodagu and Kavu in Kerala and Tamil Nadu, these forests in pre-colonial landscape, served many functions like the conservation of biodiversity and watershed, moderation of climate and promoted varied wildlife.
So the correct option is ' (i) Meghalaya, (ii) Rajasthan (iii) Karnataka and Maharashtra'.

Which of these organisms are protected by people of 'Bishnoi' community of Rajasthan?

evs - i the environment and us threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. Prosopis cineraria

  2. Black buck

  3. Bhojpatra

  4. Both (a) and (b)

Show answer
Correct Option: D
Explanation:

  • The Bishnois are a community in India living mostly in the states of Rajasthan, Haryana, Punjab and Uttar Pradesh.

  • They are renowned for adapting to the harsh conditions of the Thar Desert. This is the example for showing that the biodiversity of Rajasthan’s arid desert can be preserved not by isolating people, but through their active participation.

  • Jambheshwar announced a set of 29 tenets. These were contained in a document called Shabadwani, written in the Nagari script, which consists of 120 shabads. 

  • Of his 29 tenets, ten are directed towards personal hygiene and maintaining good basic health, seven for healthy social behavior, and four tenets to the worship of God.

So the correct option is 'both (a) and (b)'.

.......... kind of species are found only in a particular area.

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  1. Endemic

  2. Pandemic

  3. Exotic

  4. All of the above

Show answer
Correct Option: A
Explanation:

Species found only in a particular area are known as endemic. Endemic species are often endangered.

Pandemic species is one that is widely distributed throughout a country or continent.
Exotic species are those species that live outside their natural habitat.
Thus, the correct answer is option A.

Migration is an

commercial applications environmental equilibrium threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. Annual event

  2. Biannual event

  3. Quarterly event

  4. All of the above

Show answer
Correct Option: A
Explanation:

The correct answer is 'annual event'

Migration done by birds is usually dome during winters in search of a warmer environment and food. Since winters are only one of the 4 seasons of a year, migration only occurs during winters and thus only once a year.

Which of the following migration of population does not change the size of the population?

commercial applications environmental equilibrium threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. External migration

  2. Internal migration

  3. International migration

  4. National migration

Show answer
Correct Option: B

What do you mean by wildlife conservation?

evs - i the environment and us threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. Plant a rain garden

  2. Plant windbreaks

  3. Protection of wild plants and animal

  4. Plant buffer strips along stream banks

Show answer
Correct Option: C

MAB stands for

evs - i the environment and us threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. Man and biosphere programme

  2. Man, antibiotics and bacteria

  3. Man and biotic community

  4. Mayer, Anderson and Bishby

Show answer
Correct Option: A
Explanation:

UNESCO MAB i.e., man and biosphere is an intergovernmental scientific program which was launched in order to improve the relation between people and their environment. It provides opportunities for education to improve human livelihood, it promotes the innovative approaches to economic development that are environmentally sustainable. It also includes the preservation of plants and animals under biosphere reserves with the help of human efforts. Thus, the correct answer is option A.

Siberian crane is a regular visitor of bird sanctuary of

commercial applications environmental equilibrium threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

  1. Ranganathittu (Karnataka)

  2. Bharatpur (Rajasthan)

  3. Vedanthangal (Tamil Nadu)

  4. Lalbagh (Karnataka)

Show answer
Correct Option: B
Explanation:

Ghana bird sanctuary national park is located in Bharatpur district in Rajasthan. Every year during winters when the temperature in Siberia becomes very low, migratory birds like Siberian crane from Siberia, reach this national park for breeding.