EVERYDAY SCIENCE

Detailed explanation-1: -Thus the coenobium is the aggregation of a number of Chlamydomonas-like cells. But individual cell performs its own metabolic functions like photosynthesis, respiration, nutrition, excretion etc.

Detailed explanation-2: -Volvox thallus is a motile colony with definite shape and number of cells. This habit of thallus is called coenobium. The colony is hollow, spherical or oval in shape and the size of colony is about the size of a pin head. The number of cells in a colony is fixed.

Detailed explanation-3: -The plant body of the volvox is a a hollow sphere known as coenobium, in which thousands of cells are arranged in the periphery of the sphere. The cells of the coenobium are of two types, mainly germ cells and flagellated somatic cells.

Detailed explanation-4: -Volvox is colonial green alga. The cells are like unicellular alga Chlamydomdnas and are definitely organised in the form of a colony called coenobium. The coenobia of Volvox are largest, highly differentiated and well evolved among motile forms.

Detailed explanation-5: -Hint: Coenobium is a colony of cells mostly found in algae. It is a colony with a fixed number of cells, with little or no specialization. They occur in several groups of algae. The cells are often embedded in a mucilaginous matrix and may be motile or non-motile.