In forg’s heart, there are muscular ridges which consist of fibers called |
|||||||
a) |
Purkinje fibres |
b) |
Myonemes |
c) |
Telodendria |
d) |
Columnae carnae |
In forg’s heart, there are muscular ridges which consist of fibers called |
|||||||
a) |
Purkinje fibres |
b) |
Myonemes |
c) |
Telodendria |
d) |
Columnae carnae |
(d)
In frog’s heart, a number of muscular ridges called columnae carne projected from the wall of ventricle into its cavity, dividing the peripheral part of the cavity into a number of pockets. It prevent suction that would occur with a flat surfaced membrane and thus impairs the heart’s ability to pump efficiently.
Which is not a feature of annelids? |
|||
a) |
Metameric segmentation |
b) |
Nephridia |
c) |
Psedocoelom |
d) |
Clitellum |
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