How Does Cross Fertilization Happen in Sponges?
Although Most Sponges Are Hermaphrodite but Cross-Fertilization Is the Rule Because Eggs and Sperms Are Produced at Different Times. .. . Sperms from Water...
Although most sponges are hermaphrodite but cross-fertilization is the rule because eggs and sperms are produced at different times. ... Sperms from water enter the body of another sponge through canal system and reach the flagellate chambers, where choanocytes trap them.
How does cross fertilization occur?
In higher plants, cross-fertilization is achieved via cross-pollination, when pollen grains (which give rise to sperm) are transferred from the cones or flowers of one plant to egg-bearing cones or flowers of another. ... Internal fertilization also occurs among some fishes and other aquatic breeders.
How does fertilization occur in sponges?
Sponges may also reproduce asexually. Gametes develop from the differentiation of either choanocytes or amoebocytes, depending on the species. ... The sperm are then delivered to the eggs by the amoebocytes. Eggs are stored within the mesohyl, and that is where fertilization takes place to form a zygote.
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