UPSC NCERT ECOLOGY AND ENVIRONMENT NOTES: TOPIC WISE SOLVED MCQ’s

UPSC ECOLOGY AND ENVIRONMENT: Animal Community-4

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Today’s Topic: Animal Community-4

1. Which of the following species are listed Endangered by IUCN?

  1. Red Panda
  2. Gaur
  3. Banteng
  4. Wild Water Buffalo

a) Only 1, 2 and 3                       b) Only 1, 2 and 4                     c) Only 3 and 4                        d) Only 1, 2, 3 and 4

Ans:     C

Explanation:    The banteng (Bos Javanicus) also known as tembadan is a species of wild cattle found in Southeast Asia. It has been listed as Endangered by IUCN.

The wild water buffalo (Babalus ainee) also called Asian buffalo and Asiatic buffalo is a large bovine native southeast Asia. It is listed as Endangered in the IUCN Red List since 1986.

Red Panda and Gaur are listed as Vulnerable in the IUCN Red List.

2. Consider the following statements:

The Forest Owlet is endemic to the forests of central India.

  1. It has been classified as Vulnerable specie by IUCN.

Which of the statements given above is/are correct?

a) Only 1                     b) Only 2                     c) Both 1 and 2                        d) Neither 1 nor 2

Ans:     a) The Forest Owlet (Athena flewitti) is an owl that is endemic to the forests of central India. This species belongs to the typical owls family, Strigidae. It is known from a small number of localities and the populations are very low within the fragmented and shrinking forests of central India. It has been classified as critically endangered by IUCN Red List.

3. Which of the following species are endemic to India?

1. Ponmudi bush frog

2. Red-crowned roofed turtle

3. Gharial

4. Rao’s torren frog

  1. a) Only 1 and 2                        b) Only 1 and 4                       c) Only 2 and 4                        d) 1, 2 and 4

Ans:     B

Explanation:    Ponmudi bush frog (Raorchestes ponmudi) is endemic to the Western Ghats of India.

Rao’s torrent frog (Micrixalus Kottigeharensis) is a species of frog in the Ranidae family. It is endemic to India. It is enlisted as critically endangered in the IUCN Red List.

The Red-crowned roofed turtle is a species of turtle endemic to South Asia.

The Gharial is a crocodilian of the family Gavialidae native to the Indian Subcontinent.

4. Which of the following are marsupials?

1. Wombat

2. Koala

3. Kangaroo

4. Wallaby

a) Only 1 and 2                        b) Only 3 and 4                       c) Only 2, 3 and 4                    d) Only 1, 2, 3 and 4

Ans:     D

Explanation:    The animals found in Australia are called marsupials, because unlike other mammals. Their young ones do not develop inside their mother’s body before they are born. Marsupial babies are born tiny and underdeveloped. Soon after birth they crawl into the pouch on their mother’s belly and suckle the teat and remain there till they are old enough to blimb out. The marsupials include the Kangaroo, Wombat, Koala, Tasmanian devil, gliding possum and wallafy.

5. Match the following:

List-I                                      List-II

  1. Longest insects                      1. Goliath beetle
  2. Fastest flier                             2. Fair fly
  3. Largest insect                         3. Stick insect
  4. Smallest insect                       4. Australian dragonfly

Code:

A         B          C          D

a) 1         2          3          4

b) 3         4          1          2

c) 4         1          2          3

d) 2         3          4          1

Ans:     B

Explanation:    Stick insect is the longest insect It is up to 400 m long.

Australian dragonfly is the fastest flier. It’s speed is almost 60 km/hr.

Goliath beetle is the largest insect. Its length is 110 mm long.

Fair fly is the smallest insect. It is only about 0.03 mm long.

6. Consider the following statements:

  1. 1. Crocodile of Southeast Asia is the largest reptile.
  2. Chinese giant salamander is the largest amphibian.
  3. Komodo dragon is the biggest lizard.

Which of the statements given above is/are correct?

a) Only 1         b) Only 2                     c) Both 1 and 2                        d) Neither 1 nor 2

Ans:     D

Explanation:    The largest reptile : Crocodile of Southeast Asia (up to 5 m long).

The biggest lizard : Komodo dragon (3 m long),

The largest amphibian : Chinese giant salamander (over 1 m long).

The longest snake : reticulated phython (over 9 m long).

The most poisonous snake : Marine cobra of the Western Pacific.

The tallest reptile : Golapagas giant tortoise (stand 1.2 m tall).

The smallest reptile : Iecko (18 mm long).

7. Consider the following the statements:

  1. Monotremes are mammals that lay eggs instead of giving birth to young ones.
  2. Duck-billed platypus and echidna are mammals that lay eggs.

Which of the statements given above is/are correct?

a) Only 1                     b) Only 2                     c) Both 1 and 2                        d) Neither 1 nor 2

Ans:     C

Explanation:    Monotremes are mammals that lay eggs instead of giving birth to young ones Monotremes are warm-blooded with a high metabolic rate, have hair on their bodies, produces milk through mammary glands to feed their young ones. They lay eggs, however, the egg is retained for sometime within the mother, which actively provides the egg with nutrients. Duck billed platypus and echidna are examples of monotremes.

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