Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

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

What is the science of extinction called?

  1. Dirology

  2. Virology

  3. Pedalogy

  4. Mycology
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • The science of extinction is called dirology. An endangered species is defined as a population of a living species that is in danger of becoming extinct because of several reasons.
  • Some of the reasons can be the species have a very low population or they are threatened by the varying environmental or prepositional parameters.

    Therefore, the correct answer is option A.
Multiple choice biology main natural resources classification of threatened species red data book conservation of wildlife

Which one has become extinct form India ?

  1. Lion

  2. Dodo

  3. Two - horned Rhino

  4. Tiger
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Option (C)
Two horned Rhino
Two-horned Rhino in Asia(India) Javan-Sumatran are critically endangered. But today very few rhino survice outside national parks and reservers due to persistent poaching and habitat loss over many decades.
Multiple choice biology main natural resources classification of threatened species red data book conservation of wildlife

Which group of vertebrates among the following, comprises the highest number of endangered species?

  1. Birds

  2. Mammals

  3. Fishes

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

An endangered species is a species that is at high risk of becoming extinct. Plants have the highest number of endangered species. Mammals have 177 endangered species which represents 3.8% of all the species. Similarly, birds have 188 endangered species which represents 1.9% of all the species. Reptiles, amphibians and fishes have 47, 32 and 158 endangered species representing 0.7%, 0.7% and 0.6% respectively of all the species in each group.

Thus, the correct answer is option B.

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

Archaeopteryx is

  1. Extinct mammal

  2. Extinct bird

  3. Star Fish

  4. Marine fish
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Arcahaeopteryx is an extinct bird. It is the most primitive known bird with several specimens dating back about 150 million years to the Jurassic bird. It is also known as an evolutionary link between modern birds and a group of dinosaurs that roamed the earth 150 million years ago.
So, the correct answer is 'Extinct bird'.
Multiple choice biology main natural resources classification of threatened species red data book conservation of wildlife

Number of animal species having become extinct since 1600 AD is

  1. 533

  2. 839

  3. 1724

  4. 3700
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When there are no more individuals of a species (plant or animal) alive anywhere in the world, the species is said to be extinct. Extinction is also known as the process of dying out. The process is a completely natural part of evolution. But sometimes extinctions happen at a higher and a faster rate than usual. Factors such as large body size, small population, and position at a higher trophic level favour extinction. 533 animal species have become extinct since 1600 AD.

So, the correct answer is '533'.

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

Number of plant species known to have become extinct since 1600 AD is

  1. 279

  2. 384

  3. 629

  4. 717
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When there are no more individuals of a species (plant or animal) alive anywhere in the world, the species is said to be extinct. Extinction is also known as the process of dying out. The process is a completely natural part of evolution. But sometimes extinctions happen at a higher and a faster rate than usual. Factors such as large body size, small population, and position at a higher trophic level favour extinction. 384 plant species have become extinct since 1600 AD.

So, the correct answer is '384'.

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

According to IUCN Red List, what is the status of Red Panda (Ailurus fulgens) ?

  1. Critically endangered species

  2. Vulnerable species

  3. Extinct species

  4. Endangered species
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Red Panda (Ailurus fulgens) is listed as Endangered species according to IUCN Red List because the wild population is estimated at fewer than 10,000 mature individuals and continue to decrease due to habitat loss and fragmentation, poaching and inbreed depression.
So, the correct answer is 'Endangered species'.
Multiple choice biology main natural resources classification of threatened species red data book conservation of wildlife

Which of the following statement is correct? 

  1. 99% of existed species are extinct

  2. 65% of existed species are extinct

  3. 40% of existed species are extinct

  4. 30% of existed species are extinct
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Calculating the percentage of existed species that are extinct can be difficult because no one knows exactly how many species there are. 
  • Scientists have identified that of all species that have existed on Earth, 99.9 % are now extinct. Many of them perished in five catastrophic events.
  • Hence 99% of existed species are extinct.
  • So, the correct answer is '99% of existed species are extinct'.