Question:
Which do you think is a more basic characteristic for classifying organisms?(a) the place where they live.(b) the kind of cells they are made of. Why?
Answer:
Option (b) the kind of cells they are made of, is the more basic characteristic for classifying organisms. It is for the following reasons:
- Classifying organisms based on habitat is misleading. Apart from common habitat, there are no other common features among them. e.g. Lion and Rabbit both live on land but they differ from each other a lot. Further, sub-classification is not possible.
- Cells are the functional and structural unit of life. Primarily we can differentiate organisms are unicellular and multicellular. Further sub-classification or logical sequence is possible based on cell types, its complexity etc.
Diversity in Living Organisms
Q 1.
Name a reptile which has four chambered heart.
Q 2.
Give examples of Arthropod animals.
Q 3.
In how many kingdoms Carolus Linnaeus diving living beings?
Q 4.
Give three examples of Protochordata animals.
Q 5.
How is a body of Arthropods segmented?
Q 6.
Cold blooded, two chamber heart, stream lined body, scales on skin, gills present, aquatic life. Which group of vertebrates are we referring to?
Q 7.
Name five countries that lie in the region of megadiversity.
Q 8.
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 9.
Give examples of bryophytes.
Q 10.
Differentiate between Annelida and Nematode.
Q 11.
Name the phylum to which Start fish and Sea urchin belong to?
Q 12.
What is the primary characteristic on which the first division of organisms is made?
Q 13.
Identify the plant groups which has net like veins in leaves, flower parts in group of fours or fives, vascular bundles are in a ring and two seed leaves.
Q 14.
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 15.
Snakes, turtles, lizards and crocodiles belong to which category of vertebrates?
Q 16.
Give examples of egg laying mammals
Q 17.
Name the book written by Carolus Linnaeus on the classification of organisms.
Q 18.
Explain the basis for grouping organisms into five kingdoms.
Q 19.
In which kingdom will you place an organism which is single-celled, eukaryotic and photosynthetic?
Q 20.
Blue-green algae are classified with bacteria and placed in kingdom Monera.
Q 21.
What are the major divisions in the Plantae? What is the basis for these divisions?
Q 22.
Why bryophytes are called the amphibians of the plant kingdom?
Q 23.
List important characteristics (at least three) of bryophytes.
Q 24.
Name the phylum to which the following are included. (i) Spider (ii) Cockroach (iii) Prawn (iv) Housefly
Q 25.
Which animal phylum is commonly called as flatworms?
Q 26.
Give examples of animals belong to Nematoda.
Q 27.
Give examples of the organisms that have cilia and flagellum for moving around.
Q 28.
Name the three divisions of Plantae that have inconspicuous reproductive organs. What are their seeds called?
Q 29.
Name the two groups of Plantae that are commonly called phanerogams.
Q 30.
Sunflower, Maize, Wheat and Pea belong to which group of plants?
Q 31.
Hydra, Jelly Fish, corals belog to which group of animals?
Q 32.
Commonly called flatworm, bilateral symmetrical, acoelomates are the features of which animal division?
Q 33.
Identify the Animalia group having following features:
Q 34.
Give three examples of Molluscs
Q 35.
Four Chambered heart, mostly viviparous, skin covered with hairs, skin contains sweat and oil glands, four chambered heart. Which category of vertebrates are we talking about?
Q 36.
What do you mean by biodiversity?
Q 37.
What are the advantages of classification?
Q 38.
What is the primary characteristic on which the first division of organisms is made?
Q 40.
Will advanced organisms be the same as complex organisms? Why?
Q 41.
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 42.
Who identified the Fungi as a separate multicellular eukaryotic kingdom and introduced five kingdoms? Name the five kingdoms.
Q 43.
What is the criterion for classification of organisms as belonging to kingdom Monera or Protista?
Q 44.
What are the uses of bryophytes?
Q 45.
How are pteridophytes different from the phanerogams?
Q 46.
Give two examples of Gymnosperms.
Q 47.
Define Cryptograms.
Q 48.
How do gymnosperms and angiosperms differ from each other?
Q 49.
What are the general characteristics found in all animals?
Q 50.
Animals belong to phylum Coelenterata are diploblastic. What do you mean by the term diploblastic?
