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| Q. |
The example of hermaphrodite animal in which cross fertilization occurs is - |
| A. | Hydra |
| B. | Ascaris |
| C. | Earthworm |
| D. | Silkworm |
| Answer» A. Hydra | |
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Explanation: Cross fertilization occurs in Hydra. The spermatozoa released from the testis of one Hydra swim about in water with their tails and finally come into contact with the ovum of another Hydra. Only one spermatozoon penetrates the ovum and fertilizes it. This results in the formation of a zygote which is diploid. |
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