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2.Human Reproduction
normal
Spiral cleavage is found in
A
Synapta
B
Amphibia
C
Nematoda, annelida and rotifera etc.
D
None of the above
Solution
(c)In patterns of spiral clevage, blastomeres are arranged in a spiral manner e.g., platyhelminthes, Annelida and most mollusca.
Standard 12
Biology
Similar Questions
Match the columns.
| Column $I$ | Column $II$ |
| $(a)$ Testis andovary | $(1)$ Part of reproductive organ that transport germ cells |
| $(b)$ Clitoris |
$(2)$ Developing fleshy fold surrounding both side of urinegenital groove – urethra |
| $(c)$ Oviduct | $(3)$ Gametes which produce germ cells |
| $(d)$ Scrotum,labium | $(4)$ Organs associated majora with sexual respons |
normal
