मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Write in brief about progressive changes in animal classification.

Advertisements
Advertisements

प्रश्न

Write in brief about progressive changes in animal classification.

थोडक्यात उत्तर
Advertisements

उत्तर

There were different methods of classification of animals.

  1. The first classification method was proposed by the Greek philosopher Aristotle. He considered characteristics such as body size, habits, and habitats of the animals. This approach was termed the artificial method of classification.
  2. Scientists like Theophrastus, Pliny, John Ray, Linnaeus, and others used the same artificial method.
  3. Further, sources were updated because science has advanced, and new ways of classifying things were proposed. Linnaeus and others.
  4. The ‘Natural system of classification’ was then proposed. This system of classification was based on criteria such as body organisation, cell types, chromosomes, and biochemical properties.
  5. Later, Dobzhansky and Meyer gave a system of classification based on evolution.
  6. In 1977, Carl Woese also proposed the three-domain system of animal classification.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Animal Classification - Exercises [पृष्ठ ७५]

संबंधित प्रश्‍न

If you are given a specimen, what are the steps that you would follow to classify it?


How useful is the study of the nature of body cavity and coelom in the classification of animals?


Distinguish between intracellular and extracellular digestion.


What is the difference between direct and indirect development?


What is the exact difference between grades of organization and symmetry? Explain with examples.


Write the correct co-relation:

Annelida: Earthworm :: Platyhelminthes: _______


The largest division of the living world is ______.


The symmetry exhibited in cnidarians is ______.


Lateral line sense organs occur in ______.


Choose the term that does not belong in the following group and explain why it does not belong?

Notochord, cephalisation, dorsal nerve cord and radial symmetry.


Which organism is called Friends of farmers? Why?


In some animal groups, the body is found divided into compartments with serial repitition of at least some organs. This characteristic feature is called ______.


Differentiate between a diploblastic and a triploblastic animal.


Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.


What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?


Complete the paragraph using proper words:

(Asymmetrical, Paramecium, Equal, imaginary, central, insects, rats, bird, three, unequal)

If body of any animal is cut through ______ axis of body, it may or may not produce two equal halves. Depending upon this property, there are different types of animal bodies. In the case of ______ body, there is no any such imaginary axis of the body through which we can get two equal halves. For example Amoeba, ______ some sponges. In radial symmetry type of body, if imaginary cut passes through central axis but any plane of body, it gives two ______ halves. For example Starfish. In case of this animal, there are five different planes passing through ______ axis of body through which we can get two equal halves. In Bilateral symmetry type of body, there is only one such imaginary axis of body through which we can get two equal halves. For example: ______ fishes, frog, birds, human, etc.


Animal with bilateral symmetry in ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×