Thursday, September 30, 2010
Monday, September 27, 2010
Kingdom Protoctista:
1. Subklngdom Algae
(i) Phylum Chlorophyta (green algae)
(ii) Phylum Phaeophyta (Brown algae)
2. Subkingdom Protozoa
(i) Phylum Rhizopoda (Rhizopods)
(ii) Phylum Ciliophora (Ciliates)
(iii) Phylum Zoomastigina (Flagellates)
Thursday, September 23, 2010
Monday, September 20, 2010
Classification of organisms
Living organisms can be classified into five-kingdom system:
1. Prokaryotae
2. Protoctista
3. Fungi
4. Plantae
5. Animalia.
Classification of viruses
Classification of viruses would be based on:
(a) type of nucleic acid
(b) shape of protein coat
(c) type of host cell they invade (plant viruses, animal viruses or bacteriophaees, viruses which attack bacterial).
(a) type of nucleic acid
(b) shape of protein coat
(c) type of host cell they invade (plant viruses, animal viruses or bacteriophaees, viruses which attack bacterial).
Saturday, September 18, 2010
What is biodiversity?
Biodiversity (biological diversity) is usually considered at three different levels:
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