Short Answer TypeWhat are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
Long Answer TypeHow useful is the study of the nature of body cavity and coelom in the classification of animals?
Short Answer TypeDistinguish between intracellular and extracellular digestion?
|
Intracellular digestion |
Extracellular digestion |
|
Digestion takes place inside the cell. |
Digestion takes place outside the cell |
|
Enzymes are secreted into the food vacuole |
Enzymes are secreted into the digestive cavity. |
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Less efficient |
More efficient |
|
Found in unicellular animals |
Found in multicellular organisms |
What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
Multiple Choice QuestionsWater vascular system is the characteristic of which group of the following:
Porifera
Ctenophora
Echinodermata
Chordata
Short Answer Type“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
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