Question:
Why is there a need for classification and systematic naming of living organisms?
Answer:
Classification helps us understand biodiversity better way. Biodiversity has direct and indirect economic benefits to humans as well as to our ecosystem. A systematic study of such biodiversity is essential to better understand the inter-relationships in our ecosystems. Following are the needs to classify them:
- Plants and animals have valuable genetic variation information. It will help us understand the ways evolution take place.
- Humans often benefit from plants and animals in different ways. A systematic study will help to explore other potential benefits.
- Certain species warn us of imbalances in our ecosystem. e.g. white-rumped vultures became almost extinct because of use of drug burfen (diclofenac) in domestic animals. When vultures ate these dead animals, it led to their kidney failures. A systematic study of the organisms would help in restoring the balance in their ecosystems.
- Plants and animals have been the inspiration for technology and engineering design. e.g. SONARS and RADARS work on the same acoustics principles as used by bats. Classification will help us revealing such more inspirations.
- It is estimated that the Earth has almost 8.8 million animal, plant, and fungi species, but we’ve only discovered less than a one-fourth of this. Classification gives a system for identification of known and unknown organisms.
Diversity in Living Organisms
Q 1.
Which region of the earth is called the region of megadiversity?
Q 2.
Name the plants that are called "
First vascular land plants".
Q 3.
What is a notochord? What does it do?
Q 4.
Which worms cause elephantiasis. Name the group it belongs to?
Q 5.
Give three examples of organisms that are arthopods.
Q 6.
Give three examples of animals belong to Echinodermata
Q 7.
Name a reptile which has four chambered heart.
Q 8.
Explain the basis for grouping organisms into five kingdoms.
Q 9.
How Angiosperms are divided further?
Q 10.
Which animal phylum is considered to be first triploblastic animals?
Q 11.
Leeches and Earthworms belong to which phylum?
Q 12.
How do annelid animals differ from arthropods?
Q 13.
Who wrote the book
The Origin of Species?
Q 14.
Will advanced organisms be the same as complex organisms? Why?
Q 15.
Write the differences between monocots and dicots.
Q 16.
Give examples of Porifera or Sponges.
Q 17.
Identify the phylum having following characteristics:
Q 18.
Give the scientific names of tiger, peacock, ant, neem, lotus and potato.
Q 19.
Which in your opinion is more basic characteristic for classifying organism. The place where they live in or the kind of cells they are made of?
Q 20.
What is the primary characteristic on which the first division of organisms is made?
Q 21.
What is the mode of nutrition in Mushroom?
Q 22.
Eichler classified the plant kingdom into two sub-kingdoms. Name the two sub kingdoms.
Q 23.
Which division of plants are often called amphibians of the plant kingdom?
Q 24.
Woese introduced by dividing the Monera kingdom into two sub-kingdoms. Name the two?
Q 25.
Give three examples of Protochordata animals.
Q 26.
Ambibian heart is divided into how many chambers?
Q 27.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 29.
How do thallophytes and pteridophytes differ from each other? Write two differences.
Q 30.
In how many Phyla, the animal kingdom is divided into?
Q 31.
How do poriferan animals differ from coelenterate animals?
Q 32.
Name the phylum to which this organism belongs. Write any two characteristic feature of the phylum.
Q 33.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 34.
In the hierarchy of classification, which group will have the largest number of organisms?
Q 35.
Algae belongs to which division of Plantae?
Q 36.
Give two examples of Pteridophyes
Q 37.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 38.
Identify the Animalia group having following features:
Q 39.
No scales on skin, mucus glands on skin, three chambered heart, respiration through gills, lungs and skin, oviparous, live on land and in water. Name the group of these vertebrates.
Q 40.
Give an example of marsupial mammal
Q 41.
What do you mean by biodiversity?
Q 42.
Why is there a need for classification and systematic naming of living organisms?
Q 43.
Based on evolution, primarily how organisms are categorised?
Q 44.
Which organisms are called primitive and how are they different from the so-called advanced organisms?
Q 45.
Name the levels of classification proposed by Linnaeus. What happens to similarities among organisms as we go from top to bottom level?
Q 46.
In the hierarchy of classification, which grouping will have the smallest number of organisms with a maximum of characteristics in common and which will have the largest number of organisms?
Q 47.
Name the scientist who created the third kingdom for all microscopic unicellular organisms. What did he call it?
Q 48.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 49.
In which kingdom you will place an organism which is multicellular, eukaryotic, non-green heterotroph or saprophytic, lacks chlorophyll and has an absorptive mode of nutrition?
Q 50.
Name the organisms which are outside the classification.
