/Phylum porifera asexual reproduction

Phylum porifera asexual reproduction

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We have loaded Prior years questions amid explanations Like as a consequence Follow us lie on Facebook and Pneu for latest updates Though some unisexual sponge species are also known, the majority sponges are monoecious or bisexual. Even though sponges are hermaphrodite hermaphrodite cross fertilization occurs as a rule as the production timing of sperm and ova are different.

The sperm and ova are derived as of the undifferentiated amoebocytes called as archaeocytes. The sperm plus ova are including known to be derived from choanocytes which later submit yourself to gametogenesis to style sperm or ova. Sponges exhibit protandry, production of sperms first and ova later or protogyny, production of ova first and sperms later.

Both protandry and protogyny make easy cross fertilization. The sperm mother chamber or a spermatogonium is the puffy archaeocytes. This spermatogonium is surrounded at hand one or new flattened cover cells to form spermatocyst. These cover cells are derived commence other amoebocytes. Contemporarily these spermatogonia sustain two to three maturation divisions in the direction of form spermatocytes after that these spermatocytes soon after give rise near spermatozoa.

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  • Sponges lack true tissues, have no body symmetry, and are sessile; types...
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