Which of the following is called pearl oyster?
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Explanation
Pinctada is commonly known as pearl oyster
NEET Practice Questions (MCQs) with Answers & Solutions
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Pseudocoelomate among the following is
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Explanation
Ancylostoma belongs to phylum Aschelminthes. It is the only phylum which is pseudocoelomate.
Which phylum consists of worm-like animals with proboscis, collar and trunk?
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Explanation
In hemichordata, the body is divided into proboscis, collar and trunk
Which of the following is not an avian character
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Explanation
Aves have fully ossified bones and the long bones are pneumatic as a flight adaptation strategy
True Segmentation of the body is seen in
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Explanation
True segmentation or metamerism is observed in Nereis belonging to phylum Annelida
Which of the following cnidarians are radially symmetrical and sessile?
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Explanation
while all of the above are radially symmetrical Aurelia is a free swimming form, while Hydra and Adamsia are sessile forms
Hermaphroditism is found in which phyla?
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Explanation
Hermaphroditism is the presence of both male and female reproductive apparatus in the same body. It is found in all of the above.
Digestive system consists of a mouth and anus in which animals
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Explanation
A complete digestive systems consists of mouth and an anus. It is present in both Ancylostoma and Wuchereria but not Adamsia which has a single cavity
A high regeneration capacity is present in
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Explanation
Planaria has a high regeneration capacity
The central cavity of the sponges is known as
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Explanation
Refer NCERT, Heading 4.2.1, page-49, para1
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