In snails, the hard calcareous shells are secreted by the...
In snails, the hard calcareous shells are secreted by the
radula
ctenidium
pneumostome
mantle
Correct answer is D
No explanation has been provided for this answer.
The easiest way to establish the level of pollution in a local stream is to measure the level of ...
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Which of the following statements about asexual reproduction is correct? It ...
Which of the following is not a courtship behaviour exhibited by animals? ...
i 2/2, c 1/1, pm 2/2, m 3/3 The above dental formula represents the dentition of ...
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Which of the following labelled structures is similar to the locomotory structure in Euglena? ...
The part labelled Il is the? ...
Which of the following cell inclusions can destroy other cell organelles? ...