Tag: biology

Questions Related to biology

Elephant is an :

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Extinct species

  2. Endangered species

  3. Endemic species

  4. All the above

  5. None of these

Show answer
Correct Option: B
Explanation:
An endangered species is an animal variety which has been ordered as prone to end up wiped out. Jeopardized, as sorted by the International Union for Conservation of Nature Red List, is the second most extreme protection status for wild populaces in the IUCN's pattern after Critically Endangered. 
example: Asian elephant (Elephas maximus) 
So, the correct option is 'Endangered species'.

Select the correct statement:

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Panthera onca is jaguar

  2. Felidae is family of all cats and dogs

  3. Musca is family for housefly

  4. In case of multicellular organisms,growth and reproduction is considered as same.

Show answer
Correct Option: A
Explanation:

A. The jaguar is a large species and they are native to the Americas. Their scientific name is Panthera onca.

This is a correct statement.
B. Falidae is a family of cats. It doesn't belong to dogs.
C. Musca is a genus of flies and it belongs to the family Muscidae.
D. Growth and reproduction are considered to be same only in the unicellular organisms. Whereas in the multicellular organisms, growth is defined as the increase in the body mass and reproduction is defined as the multiplication and production of new offsprings.

Antilopa carvicapra  / Black Buck is?

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Vulnerable

  2. Endangered

  3. Critically endangered

  4. Extinct in the wild

Show answer
Correct Option: C
Explanation:
  • The blackbuck (Antilope cervicapra), also known as the Indian antelope, is an antelope found in India, Nepal, and Pakistan. The blackbuck is the sole extant member of the genus Antilope.
  • Antilopa carvicapra  / Black Buck is because it has been categorized by the International Union for Conservation of Nature (IUCN) as facing an extremely high risk of extinction in the wild.
  • So, the correct answer is 'Critically endangered'.

Animals get extinct mainly due to

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Predation

  2. Habitat destruction

  3. Afforestation

  4. Pollution

Show answer
Correct Option: B
Explanation:

Habitat destruction is the process in which natural habitat is rendered functionally unable to support the species present. In this process, the organisms that previously used the site are displaced or destroyed, reducing biodiversity. Habitat destruction by human activity is mainly for the purpose of harvesting natural resources for industry production and urbanization. Clearing habitats for agriculture is the principal cause of habitat destruction. Other important causes of habitat destruction include mining, logging, trawling and urban sprawl. Habitat destruction is currently ranked as the primary cause of species extinction worldwide.

Therefore, the correct answer is option B.

Which of the following animal has become extinct?

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Tiger

  2. Ostrich

  3. Peripatus

  4. Archaeopteryx

Show answer
Correct Option: D
Explanation:

Archeopteryx is said to be a connecting link between aves and reptiles. It is a flightless bird from the age of dinosaurs. 

Tigers, ostrich, and peripatus are not extinct. Their species can still be found alive in various forests, national parks, and sanctuaries. 
So, option D is the correct answer.

Which of the following animal has recently become extinct?

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Mammoth

  2. Dodo, Raphus

  3. Dinosaurs

  4. Pterodactyl

Show answer
Correct Option: B
Explanation:

The animal called dodo (scientific name (raphus cucullatus) is a bird belonging to island Mauritius. It is a flightless bird, which was probably eaten away by Dutch sailors.

So the correct option is B.

Which of the following species of rhinoceros is said to be the most critically endangered species?

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Indian one-horned rhinos

  2. Javan rhino

  3. African black rhino

  4. Sumatran rhino

Show answer
Correct Option: B
Explanation:

Endangered species are those species which are facing the high risk of extinction. International Union for Conservation of Nature (IUCN)  is the regulatory body which lays the guidelines for the extinct species. Javan rhinos are the most threatened of the five rhino species, with 57 individuals surviving in Ujung Kulon National Park in Java, Indonesia. 

Therefore, the correct answer is option B. 

Endangered plant species are conserved by

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Gene bank

  2. Gene Library

  3. Herbarium

  4. Preserving pollen

Show answer
Correct Option: A

Which of the following animal has become recently extinct?

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Mammoth

  2. Dodo

  3. Dinosaurs

  4. Pterodactyl

Show answer
Correct Option: B
Explanation:

Dinosaurs and pterodactyls (flying reptiles) got extinct about 65 million years ago by the end of the Cretaceous Period. Mammoths were extinct 10,000 years ago. Dodo's were large flightless bird endemic to the island of Mauritius and east of Madagascar. They became extinct 350 years ago due to poaching for their meat. Thus the correct answer is option B.

Species with low population numbers that are in considerable danger of elimination are termed as 

biology main natural resources classification of threatened species red data book conservation of wildlife

  1. Endemic

  2. Extinct

  3. Endangered species

  4. Evolution

Show answer
Correct Option: C
Explanation:
  1. A species whose habitat is restricted to a particular area is known as endemic species. 
  2. A species that has died out and hence is out of site is called extinct species.
  3. A species which is less in number and can be extinct in near future is called endangered species.
  4. The origination and development of new life forms on earth is called evolution.
Thus the correct answer is option 'Endangered species'.