biology : class11 Organization of Biodiversity : Importance of Classification, Basis of Classification, Advantages of Classification : Need for Classification MCQ Questions and Answers
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Organization of Biodiversity
MCQ questions and answers.
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MCQ Questions
1. What is the main purpose of organizing biodiversity into groups?
A.
To make the study of organisms easier
B.
To increase the number of organisms
C.
To change the features of organisms
D.
To stop organisms from reproducing
Correct Answer:
To make the study of organisms easier
Explanation:
Organizing biodiversity into groups makes the identification, comparison, and study of organisms easier.
2. Organisms are commonly grouped in classification based on their:
A.
Similarities and differences
B.
Place of discovery only
C.
Size only
D.
Age only
Correct Answer:
Similarities and differences
Explanation:
Classification organizes organisms by comparing their similarities and differences.
3. Which of the following is an advantage of classifying organisms?
A.
It helps in the systematic study of biodiversity
B.
It removes all differences among organisms
C.
It prevents the discovery of new organisms
D.
It makes every organism identical
Correct Answer:
It helps in the systematic study of biodiversity
Explanation:
Classification provides an organized way to study the large variety of organisms found in nature.
4. A group of organisms having common characteristics is called a:
A.
Taxon
B.
Habitat
C.
Population
D.
Community
Correct Answer:
Taxon
Explanation:
A taxon is a group of organisms placed together in classification because they share certain characteristics.
5. Which sequence shows the correct order from a smaller to a larger classification group?
A.
Species, genus, family
B.
Family, genus, species
C.
Genus, species, family
D.
Family, species, genus
Correct Answer:
Species, genus, family
Explanation:
In the taxonomic hierarchy, species is placed below genus, and genus is placed below family.
6. Why are organisms placed in different groups during classification?
A.
Because they differ in their characteristics
B.
Because they all have the same characteristics
C.
Because they live in the same location
D.
Because they have the same body size
Correct Answer:
Because they differ in their characteristics
Explanation:
Different characteristics help scientists separate organisms into suitable groups.
7. Which classification group contains organisms that are most closely related?
A.
Species
B.
Kingdom
C.
Phylum
D.
Class
Correct Answer:
Species
Explanation:
A species is a basic classification group whose members share many similarities and are closely related.
8. The hierarchical arrangement of organisms means that organisms are arranged:
A.
In groups and subgroups
B.
Only according to their colour
C.
Without any order
D.
Only according to their habitat
Correct Answer:
In groups and subgroups
Explanation:
Hierarchy organizes organisms into groups and smaller subgroups based on their similarities and differences.
9. How does classification help in identifying an unknown organism?
A.
By comparing its characteristics with known groups
B.
By observing only its location
C.
By measuring only its weight
D.
By ignoring its characteristics
Correct Answer:
By comparing its characteristics with known groups
Explanation:
An unknown organism can be identified by comparing its features with the characteristics of established groups.
10. What does the organization of biodiversity provide to biologists?
A.
A clear and orderly way to understand living organisms
B.
A method to eliminate biodiversity
C.
A way to make all organisms similar
D.
A system based only on the colour of organisms
Correct Answer:
A clear and orderly way to understand living organisms
Explanation:
Organizing biodiversity gives biologists a clear and orderly system for understanding and studying living organisms.
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