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प्रश्न
Distinguish between Aves and Mammalia.
उत्तर
| Aves | Mammalia | |
| 1. | Mammary glands are absent. | Mammary glands are present. |
| 2. | They are completely adapted for aerial life. | They are mostly terrestrial animals with some exceptions like dolphin, bat, etc. |
| 3. | Body is divided into head, neck and trunk. | Body is divided into head, neck, trunk and tail. |
| 4. | Exoskeleton is present in the form of feathers. | Exoskeleton is present in the form of hairs or fur. |
| 5. | Digits are covered with scales and bear claws. | Digits are provided with nails, claws or hooves. |
| 6. | e.g. Peacock, penguin, parrot, pigeon, duck. etc. | e.g. Elephant, human, kangaroo, dolphin, bat, etc. |
संबंधित प्रश्न
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?
What is the primary characteristic on which the first division of organisms is made?
What are the advantages of classifying organisms?
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?
Write any two points of differences between flat worms and round worms.
With the help of flow chart depict five kingdoms classification.
How is the complexity of cell structure and their number used in classification?
Describe the characteristics used in hierarchial classification of organisms.
Complete the five-kingdom method of classification using living organism prokaryotes, eukaryotes, multicellular, unicellular, protista, animals, plants, fungi.
Give advantages of classification of animals.
What is classification?
Write the levels of classification.
Give examples for the following
Open circulatory system is found in ______ where coelomic cavity is filled with blood.
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.
