Question

What is coenobium? Describe asexual reproduction in Volvox.
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Answer 1

Answer:

Asexual Reproduction in Volvox

In a young colony known, as coenobium, all the cells are the same but later, a few cells of the posterior half of the Volvox colony increase in size by storing up the food. These cells become enlarged in size and form asexual reproductive cells, called gonidia or parthenogonidia.

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Answer 2

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coenobium (pl. coenobia) A loose association of unicellular organisms that live in a colony and may be surrounded by a common membrane. Often the cells are held together in a jelly excreted by all individuals in the colony.

Volvox reproduces asexually through the formation of autocolonies. Special gonidium cells divide to form daughter colonies that are small versions of the parents but with the flagella facing inwards. ... Larger gonidia reproductive cells in the colony posterior give rise to the gametes and daughter colonies.