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Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Islands have higher number of endemic species as they are separated from other land masses by

  1. Deserts

  2. Mountains

  3. Large expanses of water

  4. Valleys
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Endemic species are species which are native to a place and are not found anywhere else. Islands have a higher number of such as they are separated from other land masses by large expanses of water. Communities in such islands are called as oceanic island communities. Human intervention is less because of the water and thus endemism is high.

So, the correct answer is 'Large expanses of water'.

Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Which is an endemic plant?

  1. <p>Nepenthes khasiana</p>

  2. <p>Riccia discolor</p>

  3. <p>Vernonia cinerea</p>

  4. <p>Cynodon dactylon</p>
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Nepenthes khasiana is an endemic plant to India. It is the only species of pitcher plant which is endemic to our country. Endemic means a species which is native to a place and is not found anywhere else in the world. Endemic basically means indigenous. The more endemic species at a place more is the biodiversity of that place. For example, the Nilgiri tahr also known as Nilgiri Ibex is endemic to the Nilgiri Hills and some part of Western Ghats of Kerala. So, the correct answer is 'Nepenthes khasiana'.

Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Approximate percentage of endemic flowering plants in India is

  1. 23

  2. 33

  3. 53

  4. 63
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A) The correct answer is 33%.

B) The approximate percentage of endemic flowering plants in India is 33%.
C) The percentage of endemic species is only 33%.
D) The percentage of endemic species is not as high as 63%.
So the correct answer is '33'.

Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Crocodiles found in India are 

  1. Crocodylus potostis and Crocodylus palusrris

  2. Crocodylus palustris and Gavialis gangeticus

  3. Gavialis gangeticus and Crocodylus porosus

  4. Crocodylus porosus, Crocodylus palustris and Gavialis gangeticus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
There are 3 crocodiles found in India. The Mugger crocodile (Crocodylus palustris), Gharial (Gavialis gangeticus) and the saltwater crocodile (Crocodylus porosus). In India, their habitat includes lakes and rivers.
The Mugger crocodiles are found throughout India in almost all rivers. The saltwater crocodile is found in the eastern states of Odisha, West Bengal and Tamil Nadu. The Gharials are found in only some rivers of India which includes Chambal, Ganges, Yamuna, Kali, Kosi, Gandak. Hence, the correct answer is option D.
Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

The Indian wild ass (Asinus hemionus) is found in 

  1. Garhwal Himalayas

  2. Plateau of Ladakh

  3. Thar deser

  4. Rann of Kutch
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Indian wild ass (Equus hemionus) is only found in the little Rann of Kutch.
It is protected in the sanctuary, known as the Wild Ass Wildlife Sanctuary located in the little rann of kutch in the Gujarat. It was established in 1972 under the Wildlife protection Act of 1972.
So, the correct answer is option A.
Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Incorrect match for endemism amongst species is

  1. India- 47%

  2. Australia- 80%

  3. Hawaii- 82%

  4. None of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Endemic species are restricted to a given area for various reasons like some special requirements for optimum growth, soil and other environmental conditions etc. India ranks 47%, Australia - 80% and Hawaii- 82%.

Therefore, the correct answer is option D.

Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Occurrence of endemic species in South America and Australia is due to

  1. These species has been extinct from other regions

  2. Continental separation

  3. There is no terrestrial route to these places

  4. Retrogressive evolution
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Occurrence of endemic species in South America and Australia is due to continental drift. Continental drift is the gradual movement of the continents across the earth's surface. Therefore, the correct answer is option B.

Multiple choice commercial applications i love gujarat flora and fauna in forest ecosystem threatened species need of conservation

Which of the following factors affect the natural habitat of endemic species?

  1. Destruction of their habitat

  2. Increasing human population

  3. Introduction of new species

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Habitat destruction occurs when natural habitats are no longer able to support the species present, resulting in the displacement or destruction of its biodiversity.
  • The growth of the human population has impacted the planet and affected biodiversity. The need for food, space and raw materials has resulted in the destruction of habitats and pollution.
  • Introduction of invasive species causes harm to wildlife in many ways. When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. Invasive species can also alter the abundance or diversity of species that are important habitat for native wildlife.
So, the correct answer is 'All of the above'.