Biology
Exotic and Endemic species of Aquarium fishes: There are many exotic and endemic species that add beauty, intrigue, and diversity to tanks. What is ornamental fish? Fish kept or raised as ornaments are done so for their visual appeal. When goldfish were domesticated in China more than a millennium ago, decorative fish breeding got off….
Aquarium Fish Industry: The aquarium fish industry has significant potential as a cottage industry, especially in regions where people have easy access to natural aquatic resources, a growing interest in pet ownership, and a strong desire for sustainable, local products. Let’s explore the scope of this industry in a cottage setting: Scope of Aquarium Fish…
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Phylum Chordata: The animal kingdom was divided into several major groups or phyla of animals. Here we will seen the what is phylum chordata and their general characters. Phylum Chordata Currently animals are divided into 30 phyla and last group of animal kingdom is called phylum Chordata. The name chordata was suggested by Balfour in…
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Sectioning of Tissue: It is a critical step in various scientific and medical fields, particularly histology, pathology, and microscopy. Sectioning of tissue or Section cutting Defects, Causes and Remedies Histologists are confronted often with difficult tissue blocks that will not section easily, for example, brittle or shrunken tissue, improperly infiltrated tissues, or sections with, holes…
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Rotary and Rocking Microtome: Microtomes are essential tools in the field of histology, allowing to thin tissue sections for microscopic analysis. Most commonly used microtome are the rotary and rocking microtomes. Understanding their uses, handling methods, and precautions is crucial for producing accurate results in both medical and scientific research. Rotary and Rocking Microtome Rotary…
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Biological Significance of Some Invertebrate Animals: Some of the important invertebrate animals and their biological significance are studied in this article. Biological Significance of Some Invertebrate Animals 1. Obelia 2. Physalia 3. Corals 4. Pearl Oyester 5. Bipinnaria larvae
Nephridia: Nephridia are excretory organs found in many invertebrates, such as annelids (e.g., earthworms), mollusks, and some arthropods. Nephridia are excretory organs found in many invertebrates, such as annelids (earthworms), mollusks, and some arthropods. They play a role similar to kidneys in vertebrates, helping to remove metabolic waste from the organism’s body. The basic function of…
