Respiration is a physiological process by which organisms exchange gases (especially intake of oxygen and releases of carbon-di-oxide),with the environment. This process is also known as external respiration. On the other hand, internal or cellular respiration means the oxidation of complex organic substances (carbohydrates or fats) within cells and tissues to form carbon dioxide and water with release of energy. …read more
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Systematic position: Phylum: Chordata Class: Actinopterygii (Ray-finned fishes) Order: Clupeiformes (Herrings) Family: Clupeidae (Herrings, shads, sardines, menhadens) Genus: Anodontostoma Species: A. chacunda Synonyms: Clupanodon chacunda (Hamilton, 1822) Chatoessus chacunda (Day, 1878) Dorosoma chacunda (Weber & deBeaufort, 1913) Andontostoma chacunda (Munro, 1995) Common/local names: English: Chacunda gizzard shad Bangladesh: Koi punti (কই পুঁটি), Chakunda (চাকু্নদা)(Rahman, 1989) Phillipines: Kabasi (Herre, 1948) Myanmar: Bony bream …read more Category: Fisheries Items (Except fish) | Resource Shellfish, a group of invertebrates and aquatic organism, is covered by chitinous or calcareous exoskeleton. Shell means an outer covering or layer which is popularly known as “Khoalos” in Bengali. Shellfish belongs to two major Phylum Arthropoda and Mollusca. In Bangladesh there are a wide range of shellfishes have been found which comprises different groups such as, Crustaceans (shrimp, prawn, …read more The place in where particular plants or animals live is known as habitat. Within the habitat, organism occupies different niches. A niche is the functional role of a species in a community. Habitat is a place where species get what they need to survive food, water, cover, and a place to rare young. There are 265 species under 154 genera …read more Category: Biology | Physiology The glands that secrete their products into the bloodstream and body tissues along with the central nervous system to control and regulate many kinds of body functions are known as endocrine gland. In fishes various endocrine gland has been found associated with different tasks and functions. Endocrine glands of fishes: Different types of endocrine glands are found in fishes; such …read more Category: Fisheries Items (Except fish) | Resource Shellfish, a group of invertebrates and aquatic organism, is covered by chitinous or calcareous exoskeleton. Shell means an outer covering or layer which is popularly known as “Kholos” in Bengali. Shellfish belongs to two major Phylum Arthropoda and Mollusca. In Bangladesh there are a wide range of shellfishes have been found which comprises different groups such as, Crustaceans (shrimp, prawn, …read more |
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