Advertisements
Advertisements
प्रश्न
Track the changes in methods of animal classification. How the methods of animal classification changed over the time?
उत्तर
- Formation of groups and sub-groups of animals depending upon similarities and differences is called as animal classification.
-Animal classification has been changed from time to time in the sequence as mentioned below-
- Artificial method: Aristotle, Theophrastus, Pliny, JohnRay, Linnaeus
- Natural method: Morphology, Cytology, Chromosomes, Biochemistry,
- Method based on evolution: Dobzhansky, Mayer.
- Five kingdom: Robert Whittaker
- New method: base on criteria like-body organization, body symmetry, germ layers, body cavity, segmentation.
APPEARS IN
संबंधित प्रश्न
Which organisms are called primitive and how are they different from the so-called advanced organisms?
Will advanced organisms be the same as complex organisms? Why?
What are the advantages of classifying organisms?
Write the characters of each of the following animals with the help of classification chart. Bath sponge, grasshopper, rohu, penguin, frog, lizard, elephant, jellyfish.
State any four benefits of animal classification.
Write down two disadvantages of two kingdom classification.
What is basis of classification?
How is the complexity of cell structure and their number used in classification?
Describe the characteristics used in hierarchial classification of organisms.
Briefly describe the importance of classification.
Complete the five-kingdom method of classification using living organism prokaryotes, eukaryotes, multicellular, unicellular, protista, animals, plants, fungi.
Write the levels of classification.
Elephantiasis is caused by
Skeleton is made entirely of cartilage in
Give examples for the following
Open circulatory system is found in ______ where coelomic cavity is filled with blood.
______ belongs to Phylum Platyhelminthes.
The common name of pea is simpler than its botanical (scientific) name Pisum sativum. Why then is the simpler common name not used instead of the complex scientific/ botanical name in biology?
Biological classification is a dynamic and ever evolving phenomenon which keeps changing with our understanding of life forms. Justify the statement taking any two examples.
Complete the following conceptual picture.