Distinguish between intracellular and extracellular digestion.
Distinguish between intracellular and extracellular digestion.

Distinguish between intracellular and extracellular digestion.
How useful is the study of the nature of body cavity and coelom in the classification of animals?
Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?
What are the modifications that are observed in birds that help them fly?
Match the following: (a) Operculum (b) Parapodia (c) Scales (d) Comb plates (e) Radula (f) Hairs (g) Choanocytes (h) Gill slits
What is the difference between direct and indirect development?
If you are given a specimen, what are the steps that you would follow to classify it?
“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
What are the peculiar features that you find in parasitic platyhelminthes?
What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
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