Explore topic-wise MCQs in Biology.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

1.

How many mass extinctions have occurred since the origin and diversification of life on Earth?

A. 2
B. 8
C. 3
D. 5
Answer» E.
Discussion
2.

How many species worldwide are facing the threat of extinction?

A. 150
B. 15,500
C. 1500
D. 15
Answer» C. 1500
Discussion
3.

How many species have extinct in the last twenty years?

A. 2
B. 20
C. 27
D. 7
Answer» D. 7
Discussion
4.

Which one of the following is an example of recent extinction?

A. Dinosaurs
B. Archaeopteryx
C. Dodo
D. Mammoth
Answer» D. Mammoth
Discussion
5.

According to the IUCN Red List (2004) documents, how many plant species have extinct in the last 500 years?

A. 7
B. 8
C. 870
D. 87
Answer» E.
Discussion
6.

According to the IUCN Red List (2004) documents, how many invertebrate species have extinct in the last 500 years?

A. 784
B. 359
C. 500
D. 2000
Answer» C. 500
Discussion
7.

According to the IUCN Red List (2004) documents, how many vertebrate species have extinct in the last 500 years?

A. 1000
B. 500
C. 338
D. 784
Answer» D. 784
Discussion
8.

According to the IUCN Red List (2004) documents, how many species have extinct in the last 500 years?

A. 2500
B. 1000
C. 890
D. 784
Answer» E.
Discussion
9.

Who gives the Red List?

A. NSS
B. IUCN
C. WHO
D. NCC
Answer» C. WHO
Discussion
10.

How many species of birds are extinct due to the colonization of the tropical Pacific Islands by humans?

A. 2,000
B. 8,000
C. 10,000
D. 20,000
Answer» B. 8,000
Discussion
11.

Why is the biological wealth of our planet declining rapidly?

A. Animal activities
B. Human activities
C. Plant activities
D. Ecological activities
Answer» C. Plant activities
Discussion