Communicable Diseases
Communicable diseases are caused by the entry and development of living organisms such as virus, bacteria, protozoans, worms or fungi into the body. The organism causing the disease may be transmitted from one person to another by means of air, water, food, physical contact or insects (ve..
Organic Evolution Index
Organic Evolution - Chemical evolution resulted in the formation of life on earth about 3.8 billion years ago. The primitive cells that resulted from this process gradually gave rise to primitive forms of organisms such as bacteria, algae, fungi and protozoan. These organisms in turn, gav..
Sporozoans
These are protozoans which occur as endoparasites in different groups of animals. They lack locomotor structures. The body has a tough covering called cuticle and a single nucleus. Asexual reproduction occurs by multiple fission. Sexual reproduction involves anisogamy. Life cycle may invo..
These are protozoans which occur as endoparasites in different groups of animals. They lack locomotor structures. The body has a tough covering called cuticle and a single nucleus. Asexual reproduction occurs by multiple fission. Sexual reproduction involves anisogamy. Life cycle may invo..Characteristics of Detritus Food Chain
a) Primary source of energy is dead organic matter called 'detritus' which are fallen leaves, plant parts or dead animal bodies. b) Primary consumers are 'detritivores' including protozoans, bacteria, fungi, etc which feed upon the detritus saprophytically. c) Detritivores are inturn eate..
Characteristics
Only one parent is involved All cell division are mitotic divisions The offspring is genetically identical to the parent. It is a clone. It is a very rapid mode of multiplication. Does not involve the fusion of gametes. Is found in protozoans, sponges, coelentrates, tunic..
Question 2
Question: Malaria is caused by a_________. 1. protozoan 2. fungi 3. virus 4. bacteria Answer: ..
Characteristics of Detritus Food Chain
Characteristics of Detritus Food Chain - a) Primary source of energy is dead organic matter called 'detritus' which are fallen leaves, plant parts or dead animal bodies. b) Primary consumers are 'detritivores' including protozoans, bacteria, fungi, etc which feed upon the detritus saproph..
Merits and Demerits of Two Kingdom Classification
The two-kingdom classification received considerable recognition from biologists and was in use for quite a long period of time. However, as more and more information started emerging on the various groups of plants and animals, this system of classification was found to be inadequate. Studies made..
Cytoplasmic Streaming Movement
The autonomic movement of the cytosol is called cytoplasmic streaming or cyclosis. In some plant cells and protozoans, cyclosis occurs regularly. These cells are large and as such diffusion will not be sufficient to distribute the materials. The cytoplasmic streaming serves to overcome th..
The autonomic movement of the cytosol is called cytoplasmic streaming or cyclosis. In some plant cells and protozoans, cyclosis occurs regularly. These cells are large and as such diffusion will not be sufficient to distribute the materials. The cytoplasmic streaming serves to overcome th..Ingestion in Microphagous Animals
This takes place in aquatic microorganisms such as bacteria, protozoans, diatoms, etc. Microphagous animals are sponges, corals, tadpoles, larvae of mosquitoes, etc. These animals have specialized structures for steering the water currents such as pseudopodia, cilia, flagella, etc. Param..
This takes place in aquatic microorganisms such as bacteria, protozoans, diatoms, etc. Microphagous animals are sponges, corals, tadpoles, larvae of mosquitoes, etc. These animals have specialized structures for steering the water currents such as pseudopodia, cilia, flagella, etc. Param.. Result
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