Ammocoetes is |
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1) |
Organs that help excrete ammonia in invertebrates |
2) |
Animals that have an amniotic sac surrounding the embryo in development stages |
3) |
A larval stage |
4) |
None of the above |
Ammocoetes is |
|||
1) |
Organs that help excrete ammonia in invertebrates |
2) |
Animals that have an amniotic sac surrounding the embryo in development stages |
3) |
A larval stage |
4) |
None of the above |
Ammocoetes is a filter feeding larval stage in animals belonging to class-Cyclostomata
Look at the drawing given in the figure, which has been drawn with ink of uniform line-thickness. The mass of ink used to draw each of the two inner circles, and each of the two line segments is . The mass of ink used to draw the outer circle is 6
. The coordinates of the centres of the different parts are : outer circle (0, 0) left inner circle (-
), right inner circle (
) vertical line (0, 0) and horizontal line (0, -
). The
- coordinate of the centre of mass of the ink in the drawing is
a) |
|
b) |
|
c) |
|
d) |
|
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