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The most natural concept of the individuality of a sponge, based upon morphological and physiological aspects is

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Important Questions on Animal Kingdom

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Which of the following characteristics are true for Phylum Platyhelminthes?
I. Some absorbs nutrients from the host directly through their body surface.
II. Digestive system (if any) incomplete, branched and without anus.
III. Flame cells/solenocytes/protonephridia help in excretion and osmoregulation.
IV. Hooks and suckers are present in parasitic forms.
V. Hermaphrodites (usually).
VI. Fertilization internal.
VII.Indirect development (usually) through many larval stages.
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Which one of the following statements, is not true regarding sponges/porifers?
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A coelenterate, commonly known as, water polyp, is-
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In some animals, body cavity is not lined by mesoderm. Instead the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is called
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In sea anemone, the symmetry is-
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Which of the following features are common in silver fish, scorpion, dragon fly and prawn?
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Green glands are excretory organs in
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Which of the following are pseudocoelomate?