In this article we will discuss about the vegetative, asexual and sexual methods of reproduction that occur in the life cycle of hydrodictyon. (i) Vegetative Reproduction: It takes place by fragmentation. Coenobium breaks up into small pieces called fragments. Which have capability to grow into new colonies. It may be due to water currents and movement of aquatic animals. (ii) [...]
In this article we will discuss about the asexual and sexual methods of reproduction that occurs in the life cycle of volvox. 1. Asexual Reproduction: During asexual reproduction some cells of the posterior part of colony become reproductive. These cells enlarge up to ten times, become rounded and lose flagella. These cells are called gonidia (Sing, gonidium) (Fig. 2 A). [...]
In this article we will discuss about the asexual and sexual methods of reproduction that occur in the life cycle of chlamydomonas. 1. Asexual Reproduction: It takes place by following methods: (A) By zoospores- The zoospore formation takes place during favourable conditions. The zoospore formation takes place as follows: The protoplast contracts and gets separated from the cell wall. The [...]