Spicules in Sponges
Spicules in Sponges-
Study of Euglena | General characters and classification
Study of Euglena with General character and classification- General characters- 1. Habitat : it is found in a stagnant fresh water such as pools and ponds which contain decaying organic matter. 2. Locomotion : Euglena moves by the whiplike action of a single flagellum. As Waves pass al ong the flagellum from the base to the tip. The organisms rotate as it moves. It can also move by the contraction of fibrils in its body called Myonemes. These contraction brings about a sequence of changes in the shape and cause euglenoid movement. 3. Euglena viridis is a green and photo-autotrophic organism.The Euglena absorb carbon dioxide from the water in which he lives and energy from the sunlight to carry photosynthesis. It make up its nitrogen requirements by absorbing nitrogenous substances such as amino acids from the water. 4. Structure : Euglena is a microscopic organisms of about...
Comments
Post a Comment