Zoology Notes
The abundance and presence of insects are ubiquitous. They have adapted to survive in all kinds of environments and feed on any substance with nutritional value. Though we have mostly … Read more
Habit and Habitat of Earthworm The Earthworms are burrowers. It prefers to live in the burrow during the day and comes out at night and in damp cloudy weather for … Read more
The nematode worm Caenorhabditis elegans is a small (1 mm long), unsegmented, vermiform, free-living soil nematode. It is a relatively simple, and precisely structured organism, extensively used as a model organism for … Read more
The teleost fish Danio rerio is commonly known as the zebrafish. It is a common small‐bodied tropical, freshwater species originally from South Asia. The fish is a part of the Cyprinidae … Read more
Hydra reproduces asexually by budding and sexually by the formation of gametes. Asexual reproduction of Hydra by Budding Figure: Hydra Budding. 1. Non-reproducing, 2. Creating a bud, 3. Daughter growing out, … Read more
Paramecium reproduces asexually by transverse binary fission and also undergoes several types of nuclear reorganization, such as conjugation, endomixis, autogamy, cytogamy, and hemixis, etc. 1. Transverse binary fission (Asexual reproduction) … Read more
Vorticella (L.,vortex=whirl pool) is a microscopic, unicellular eukaryotic ciliate. It occurs as a sessile attached by a stalk to the substratum. Its body is almost bell-shaped or campanulate with a … Read more
Wuchereria bancrofti is a filarial nematode that causes Wuchereriasis or filariasis(commonly called elephantiasis) in human beings. The name of this worm is given Wuchereria bancrofti in honor of the two … Read more
Aurelia is commonly referred to as jellyfish because it is made of a jelly-like substance. A jellyfish is not true fish which is a vertebrate animal with a backbone. It … Read more
Euglena viridis (Gr.,eu, true+ glene, eyeball or eye pupil+L., Viridis, green) is a unicellular green organism with an eye-like photoreceptive structure. It is phytoflagellate as it possesses both chloroplasts as … Read more
