Zoology, a branch of biology, is dedicated to the study of animal life forms within the kingdom Animalia.
Zoology encompasses a wide array of scientific disciplines, including morphology, anatomy, physiology, biochemistry, evolutionary biology, ecology, genetics, molecular biology, population genetics, taxonomy, and classification.
Zoology is the scientific study related to the entire species of the animal kingdom. An individual who specializes in the scientific study of animals (i.e., zoology) is known as a zoologist. Zoology is also known as animal biology.
The origins of zoology can be traced back to ancient times, with Aristotle being among the first to broadly classify living things into animals and plants. Over centuries, zoology has evolved significantly, especially during the Age of Enlightenment, when scientists began to conduct more in-depth research.
Today, the classification of living organisms has become more complex, with animals categorized into various phyla, classes, orders, families, genera, and species.
Zoology encompasses several sub-disciplines, each exploring specific aspects of animal life:
Each of these sub-disciplines contributes to our understanding of the diverse animal kingdom, from their structural and functional characteristics to their behavior, distribution, and evolutionary history.
Locomotion in Hydra Hydras are essentially sessile animals. They live attached by their pedal discs to objects in the water. Brown and green hydras can remain fixed at one spot … Read more
Hydra are inconspicuous freshwater relatives of corals, sea anemones, and jellyfish that are classified under the phylum Cnidaria, Class Hydrozoa, Order Anthomedusae/Anthoathecata, and Family Hydroidea. It is essentially a sedentary … Read more
Reproductive system of earthworm Earthworms do not reproduce asexually. Reproductive organs are somewhat complicated. The pheretima is monoecious or hermaphrodites having both male and female reproductive organs in the same … Read more
Nutrition of Amoeba proteus Food and selection of food Amoeba is carnivorous. It feeds by phagocytosis. The mode of nutrition is Zootrophic or holozoic. i.e. it requires ready-made (solid form) … Read more
Classification of Amoeba proteus Phylum: Protozoa Subphylum: sacromastigophora Superclass: Sarcodina Class: Rhizopodea Subclass: Lobosia Order: Amoebida Genus: Amoeba Species: proteus Habit and Habitat of Amoeba proteus Amoeba proteus is widely … 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
1. Food Paramecium feeds in a holozoic manner, like an amoeba. The food comprises chiefly bacteria and minute protozoa which floats in the water in which it lives. It also … 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 excretory organs are segmentally arranged, microscopic, coiled tubules called nephridia. Nephridia are ectodermal in origin. These are typically unbranched, and their inner ends open into coelom by a ciliated … Read more
Circulatory system of earthworm The circulatory or blood vascular system of an earthworm is a closed type. It consists of the blood vessel, heart, capillaries, and blood glands. Blood is … Read more
