Advertisements
Advertisements
प्रश्न
What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
Advertisements
उत्तर
For the classification of living organisms, common fundamental characteristics are considered.
- If we consider specific characteristics, then each organism will be placed in a separate group, and the entire objective of classification would not be achieved.
- The classification of animals is also important in comparing different organisms and judging their individual evolutionary significance. If only a single characteristic is considered, then this objective would not be achieved.
- It will be difficult to establish mutual relationships between living beings.
- Other animal species cannot be developed.
APPEARS IN
संबंधित प्रश्न
How do poriferan animals differ from coelenterate animals?
How do annelid animals differ from arthropods?
How are the criteria for deciding divisions in plants different from the criteria for deciding the subgroups among animals?
Prepare a list of some animals that are found parasitic on human beings.
Write down four main characters of Platyhelminthes. Give two examples.
Main characteristics of Nematoda:
Define the term hermaphrodite. Give two examples.
Write down four general characters of phylum Arthropoda. Give two examples.
Give four general characters of phylum Mollusca. Write down two examples.
Write down four general characters of phylum Echinodermata. Give two examples.
Write down four characters of Chondrichtyes. Give two examples.
Write down four main characters of chordates.
Describe some flight adaptations of the birds.
Give an example each of Urochordata and Cephalochordata.
Give one point of difference between notochord and nerve cord.
Distinguish between Nonchordata and Chordata.
Distinguish between polyp and medusa.
Explain general characteristics of phylum Platyhelminthes and Nematoda. Give two examples of each.
Explain the general charaters of phylum Mollusca. Give one example of following classes of Mollusca;
(i) Gastropoda;
(ii) Pelecypoda;
(iii) Cephalopoda.
Explain the general characters of phylum Arthropoda. Give one example of following classes
(i) Crustacea;
(ii) Myriapoda;
(iii) Insecta;
(iv) Arachnida.
What are pisces? Classify and explain two different kinds of fishes by the help of suitable examples.
What are the group names of the following categories of animals?
Animals with three pairs of legs ___________
Give any one difference between the following :
Flatworm and Roundworm
Match the names of animal groups in Column I with the names of animals in column II.
|
Column I (Group) |
Column II (Animals) |
|
Annelida |
Pigeon |
|
Porifera |
Snake |
|
Mollusca |
Earthworm |
|
Reptilia |
Sponge |
|
Amphibia |
Octopus |
|
Pisces |
Trout |
|
Mammal |
Rabbit |
Which names are left out that do not match and why?
TYRANNOSAURUS
(One of the extinct animals which lived on the Earth about 100,000,000 years ago) Tyrannosaurus was about six meters long and it preyed upon other animals.
What do you think about its classification-was it an amphibian, a reptile or a mammal?
Can you call it a relative of Kangaroo? Yes/No. Give reason
Write two main characters of the following animal and name the phylum it belongs to: Whale
Give the name of two animals that belong to phylum echinodermata.
Name any two animals which possess compound eyes.
Write the name of oviparous mammal.
Give two examples of each of the following: Echinodermata
Give two examples of each of the following: Annelida
Choose the correct answer: Mosquito is included in insects because
Choose the correct answer: The animal of phylum mollusca is
Choose the correct answer: The animal of class pisces is
Kingdom Animalia is characterized by
Give scientific reasons.
Body temperature is not constant in amphibians.
