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Body Fluids and Circulations
Identify the incorrect statements.
I. Members of gastropoda exhibit 'torsion'.
II. Aristotle lantern is present in heart urchins.
III. Anthozoans are polyploid forms.
IV. Diplopoda includes centipedes.
II and III
III and Iv
II and IV
I and II
C.
II and IV
Statement II and IV are incorrect and can be corrected as follows:
II. Aristotle lantern is a complex arrangement of muscles and calcareous teeth forming a reversible organ in most echinoderms, functioning in mastication.
IV. Class- Diplopoda includes millipedes.
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Write the differences between
(a) Blood and lymph
Write the differences between
Open and closed circulatory system
What is the differences between lymph and Blood?
How many times does a heart beat per minute?
What is the function of bicuspid valves?
What is the function of tricuspid valves?
Why circulatory system is absent in sponges?
What does the QRS wave represent in an ECG?
Name a animal having open circulatory system.
What are vasa vasorum?
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