Welcome to the NCERT Solutions for Class 11 Biology - Chapter Biological Classification. This page offers a step-by-step solution to the specific question from Exercise 1, Question 1: . With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.
The classification systems have undergone several changes with time. The first attempt of classification was made by Aristotle. He classified plants as herbs, shrubs, and trees. Animals, on the other hand, were classified on the basis of presence or absence of red blood cells. This system of classification failed to classify all the known organisms.
Therefore, Linnaeus gave a two kingdom system of classification. It consists of kingdom Plantae and kingdom Animalia. However, this system did not differentiate between unicellular and multicellular organisms and between eukaryotes and prokaryotes. Therefore, there were large numbers of organisms that could not be classified under the two kingdoms.
So Ernest Haeckel then separated unicellular eukaryotic organisms into separate kingdom named Protista and hence gave three kingdom classification.
After that Copeland,separated all prokaryotic organisms into a separate kingdom named Monera and hence Four-Kingdom systems of classification came into existence.
And lastly, a five kingdom system of classification was proposed by R.H. Whittakaer in 1969 to separate achlorophyllous,decomposer organism into a separate kingdom named Fungi. So five kingdoms are now
1) Monera
2) Protista
3) Fungi
4) Plantae
5) Animalia
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
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Read MoreWelcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 1: Discuss how classification systems have undergone several changes over a period of time?....
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