Tag: animal
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Microscopic Slides
Cell Division
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Prokaryotic & Eukaryotic Cells
Living World is classified into 3 division or domains, namely: 1) Bacteria (Eubacteria) 2) Archaea (Archae-bacteria) 3) Eukaryotes Bacteria & Archaea are grouped separately under Prokaryotes. Since, Viruses lack metabolic apparatus & considered non-living outside host cell, they are classified separately from the above divisions. Examples: Bacteria – Escherichia coli, Lactobacillus, Mycoplasma, Cyanobacteria etc. Archaea…
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Migration of Fishes
Introduction In life history of some fishes, population needs, like foraging & reproduction, can’t be met in single habitat. So, they travel periodically from one habitat to another & back after meeting the requirement, termed as fish migration. Causes: Sexual maturity, hormonal changes, instinct, predators, competition, food, light, temperature, pH, water currents, turbidity etc. The…