Class 10 (Science Assignment)

 

Classification of Living Beings

Living organisms are found in great variety on Earth. Some are very small, while others are very large. To study such a huge diversity of organisms easily, scientists classify living beings into different groups based on their similarities and differences. This process is called classification.

The branch of biology that deals with the classification of living organisms is known as taxonomy. Carolus Linnaeus is regarded as the father of taxonomy because he introduced the binomial system of naming organisms.

Living beings are classified into different hierarchical categories such as kingdom, phylum, class, order, family, genus, and species. Organisms with similar characteristics are placed together. Classification helps scientists identify organisms, understand their relationships, and study evolution.

According to the five-kingdom classification system proposed by Robert H. Whittaker, living organisms are divided into five kingdoms:

1.     Monera – Includes unicellular prokaryotic organisms like bacteria.

2.     Protista – Includes unicellular eukaryotic organisms such as Amoeba and Euglena.

3.     Fungi – Organisms like mushrooms and yeast that obtain food by absorption.

4.     Plantae – Multicellular organisms that prepare their own food by photosynthesis.

5.     Animalia – Multicellular organisms that depend on other organisms for food.

Classification is important because it makes the study of organisms systematic and easier. It also helps in understanding the evolutionary relationships among different organisms and provides universal scientific names for accurate identification.

MCQs on Classification of Living Beings

1. The science dealing with the classification of organisms is called:

A. Physiology
B. Ecology
C. Taxonomy
D. Genetics

2. Who is known as the father of taxonomy?

A. Charles Darwin
B. Gregor Mendel
C. Carolus Linnaeus
D. Robert Hooke

3. Which kingdom includes bacteria?

A. Plantae
B. Monera
C. Protista
D. Fungi

4. Amoeba belongs to which kingdom?

A. Animalia
B. Fungi
C. Protista
D. Monera

5. Organisms that prepare their own food are placed in:

A. Fungi
B. Animalia
C. Plantae
D. Protista

 

6. Which of the following is a unicellular eukaryote?

A. Mushroom
B. Bacteria
C. Amoeba
D. Human being

7. The five-kingdom classification system was proposed by:

A. Carolus Linnaeus
B. Robert H. Whittaker
C. Aristotle
D. Louis Pasteur

 

8. Which kingdom contains organisms that absorb nutrients from dead matter?

A. Plantae
B. Animalia
C. Fungi
D. Monera

9. Which of the following is the basic unit of classification?

A. Kingdom
B. Family
C. Species
D. Order

10. Which of the following is NOT a kingdom in Whittaker’s classification?

A. Monera
B. Plantae
C. Virus
D. Animalia