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प्रश्न
Give three examples of the range of variations that you see in life-forms around you.
उत्तर
Examples of range of variations observed in daily life are:-
(i) Variety of living organisms in terms of size ranges from microscopic bacteria to tall trees of 100 metres.
(ii) The colour, shape, and size of snakes are completely different from those of lizards.
(iii) The life span of different organisms is also quite varied. For example, a crow lives for only 15 years, whereas a parrot lives for about 140 years.
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संबंधित प्रश्न
Characters of a phylum are given below. Read those carefully and answer the questions.
a. Spines of calcium carbonate are present on the body.
b. These animals are exclusively marine.
c. They perform the locomotion with the help of tube feet.
d. Their skeleton is made up of calcareous plates or spicules.
i. Animals of which phylum show the above characters?
ii. Give an example from that phylum.
iii. These animals can be classified with the help of which criteria of new system of animals classification?
Track the changes in methods of animal classification. How the methods of animal classification changed over the time?
Why the bryophytes are called as amphibians of kingdom plantae?
State any four benefits of animal classification.
With the help of flow chart depict five kingdoms classification.
What is the need for classification?
Describe the characteristics used in hierarchial classification of organisms.
What is classification?
______ belongs to Phylum Platyhelminthes.
Complete the flow chart.
