Question

6.Plakea stage in the asexual reproduction of Volvox is_________.

1 point

(a)4-celled

(b)8-celled

(c)16-celled

(d)32-celled​

Answer 1

Answer:

c) is the answer

Explanation:

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Answer 2

Answer:

Plakea stage in the asexual reproduction of Volvox is 16-celled.

Explanation:

• Volvox is a green alga of the Chlorophyceae class that grows in colonies on the surface of freshwater ponds and lakes.
• It is capable of both sexual and asexual reproduction.
• The plakea stage occurs during the asexual reproduction of volvox.
• The posterior reproductive cells grow multiple times to create gonidia during asexual reproduction. These gonidia develop rounded pyriform cells, produce more pyrenoids, and lose their flagella and eyespots.
• The gonodia are pushed to the center, and the first division occurs longitudinally to the coenobium.  The 4-celled stage is the consequence of the second longitudinal split, which is at right angles to the first.  
• The 8-celled plakea stage is formed by the third longitudinal division, which has four core cells and four peripheral cells.  
• The plakea stage resembles a curved plate with the concave side facing outward. From here, the 16-celled stage develops into a hollow spherical with a phialopore opening to the outside.
• The cells continue to divide until the species' characteristic number is reached, with the pointed ends of each cell pointing inward.