Economic Importance of Earthworms
Earthworms are simple, commonplace creatures are of greater economic value to human beings in different ways. Our earth would be a far different place without them. They have both useful … Read more
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.
Earthworms are simple, commonplace creatures are of greater economic value to human beings in different ways. Our earth would be a far different place without them. They have both useful … Read more
Earthworms have well-developed sense organs or receptor organs. Simple in structures. Reacts to a number of stimuli with the help of 3 types of sense organs: epidermal receptor, buccal receptor, … Read more
Protozoa Definition Protozoa may be defined as “microscopic acellular animalcules existing singly or in colonies, without tissue and organs, having one or more nuclei”. Some of the characteristics are: There … Read more
The invertebrates are usually classified as Lower Invertebrates and Higher Invertebrates. Lower Invertebrates The lower invertebrates are simple in body organization. They are generally small in size. These are thought … Read more
Habitat Numerical Strength Shape Size Symmetry Grade of Organisation Germ Layers Simple Integument Locomotion Segmentation Living Endoskeleton Coelom Dorsal gut Digestive System Circulatory System Respiratory System Excretory Mechanisms Nervous System … Read more
The animal kingdom has been divided into two major groups: Invertebrates (Non-Chordates) and Vertebrates (Chordates). Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are … Read more
The digestive system of earthworms consists of the alimentary canal and the digestive glands. Earthworm Alimentary Canal Parts of the alimentary canal No. of the segment in the body Mouth … Read more