EASY
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Which one is a poikilothermic (cold blooded) animal?

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Important Questions on Animal Kingdom

MEDIUM
Which one of these animals is not a homeotherm?
EASY
Which one of the following living organisms completely lacks a cell wall?
EASY
Water vascular system is found in ___.
MEDIUM
The amino acid tryptophan is the precursor for the synthesis of:
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Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
MEDIUM
Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?
EASY
Select the taxon that represents both marine and freshwater species.
EASY
The rigidity of cellulose is due to:
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Which of the following characteristics is mainly responsible for the diversification of insects on land?
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An important characteristic that Hemichordates share with Chordates is
EASY
Which one of the following characteristics is not shared by birds and mammals?
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Which one of the following hormones though synthesized elsewhere, is stored and release by the master gland?
HARD
Which among these is the correct combination of aquatic mammals?
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Which one of the following hormones is not involved in sugar metabolism?
MEDIUM
Which of these is not an important component of initiation of parturition in humans?
HARD
Which one of the following statements is incorrect?
EASY
In the case of Poriferans, the spongocoel is lined with flagellated cells called
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The chitinous exoskeleton of arthropods is formed by the polymerization of:
EASY
Which of the following features is not present in the phylum Arthropoda?