Biology
Fixation: In the fields of histology, pathology, and cell biology, fixation is a critical step in the preparation of histological sections by which biological tissues are preserved from decay, thereby preventing autolysis or putrefaction. Fixation Definition: It is a complex series of chemical events which brings about changes in the various chemical constituents of cell…
Importance of Zoology: Zoology is the scientific study of animals. It encompasses a vast array of topics, from the anatomy and physiology of individual creatures to the behavior and ecology of entire populations. Zoologists explore the diversity of animal life, from microscopic invertebrates to gigantic mammals, examining their structures, functions, classifications, habits, and interactions with…
Collection and Selection of Specimens or Tissue for Whole Mount: The accurate and precise collection and selection of specimens or tissues are paramount in the field of microscopy and pathology. These initial steps significantly impact the subsequent analysis and interpretation of results. This article will delve into the critical aspects of specimen collection and selection…
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Microtechnique: Microtechnique is a fascinating and essential field within biological sciences, providing invaluable insights into the microscopic structure and function of various specimens. This article delves into the definition, scope, and application of microtechnique, highlighting its significance and the advancements it brings to scientific research. Definition of Microtechnique Microtechnique refers to the collection of methods…
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Hemichordata: They are tongue worms, which have been included for long as a subphylum or class of Phylum Chordata in the lower chordates or Protochordata, but now they are placed as an independent phylum of invertebrates, since their supposed affinities with chordates are doubtful. Hemichordata are a small group of marine, solitary or colonial, worm-like,…
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Phylum Protozoa: The Phylum Protozoa comprising a diverse group of unicellular organisms. Let’s explore their characteristics and classification. Defination: The Protozoa may be defined as ‘microscopic, acellular animalcules existing singly or colonies, without tissues and organs, having one or more nuclei. When in colonies, they differ from Metazoa in having all the individuals alike except…
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Phylum Cnidaria: Cnidaria derives from the Greek word “cnidos,” which means “stinging thread.” Defination: The cnidaria may be defined as “diploblastic Metazoa with tissue grade of construction having nematocysts and a single gastrovascular cavity or the coelenteron.” The phylum Cnidaria is a large group of aquatic invertebrates, with over 11,000 described species. They are mostly marine…
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