In this article we will discuss about the structure and life history of elphidium, explained with the help of suitable diagrams. Structure of Elphidium: 1. The shape of the animal is more or less round. 2. It is surrounded with a many-chambered, mullilocular and perforate calcareous shell consisting of 45 to 50 chambers. 3. The, chambers are boat-shaped and spirally [...]
In this article we will discuss about:- 1. Genus of Euglena 2. Structure of Euglena 3. Locomotion 4. Nutrition 5. Reproduction. Genus of Euglena: The Euglena is an acellular, fresh water organism placed in the order Euglenida, class Phytomastigophora, subphylum Mastigophora, phylum Sarcomastigophora, subkingdom Protozoa. The genus Euglena comprises probably about fifty species and they vary considerably in shape, size [...]
The following points highlight the top four modes of nutrition in protozoa. The modes are: 1. Holozoic 2. Holophytic (Holos = Whole + Phyton = Plant Origin) or Autotrophic (Photosynthesis) 3. Saprophytic (Sapros = Rotten) or Saprozoic 4. Parasitic. Mode # 1. Holozoic: (holos = whole + zoon = animal). Most of the free-living protozoon's depend on engulfing the whole [...]