Zoology

Topics Under This Category

Fishing Crafts And Gears – Definition, Types, Examples

12 min readby
Fishing Gear

Fishing crafts and gears are integral components of the fishing industry, facilitating the capture of aquatic species across various environments. Fishing crafts, which include boats, skiffs, and canoes, are specifically designed to navigate diverse water bodies, ranging from freshwater lakes to expansive ocean waters. These vessels vary in size, shape, and construction materials, reflecting the … Read more

Fisheries – Definition, History, Inland, Marine, Factors influencing, Importance

33 min readby
Fisheries - Definition, History, Inland, Marine, Factors influencing, Importance

What is Fisheries? History of Fisheries The history of fisheries has evolved alongside human civilization, with evidence suggesting that fish were a crucial resource as early as the Old Stone Age. Fisheries have grown from basic hunting and preservation methods to a complex science that combines multiple disciplines for efficient fish cultivation and sustainable resource … Read more

Classification of Fish (pisces) – Systematic Classification and Based on feeding habit, habitat and manner of reproduction

3 revisions 22 min readby
Position of Fishes in Phylum Chordata

What is Fish? General description of fish Fish are fascinating aquatic vertebrates characterized by their unique adaptations for life in water. They are distinguished by the absence of limbs with digits, opting instead for fins that facilitate swimming. As anamniotes, fish embryos develop without an amniotic membrane, a trait that differentiates them from tetrapods such … Read more

Mechanism of Hormone Action by Extracellular and Intracellular receptors

10 min readby
Mechanism of Hormone Action by Extracellular and Intracellular receptors

Hormones are biochemical messengers produced by glands in the endocrine system and secreted into the bloodstream to regulate various physiological processes in the body. They play a crucial role in maintaining homeostasis and influencing a wide range of functions, including: Hormones exert their effects by binding to specific receptors on target cells, initiating a cascade … Read more

Homeostasis – Definition, Mechanism, Types, Importance, Examples

21 min readby
Homeostasis - Definition, Mechanism, Types, Importance, Examples

What is Homeostasis? Definition of Homeostasis Homeostasis is the process by which living organisms maintain a stable internal environment despite external changes, ensuring optimal functioning of physiological systems. This involves regulating various parameters such as temperature, pH, and ion concentrations through feedback mechanisms that include receptors, control centers, and effectors. Components and Process of Homeostasis … Read more

Ovaries – Definition, Structure, Hormones, Functions

12 min readby

What is Ovary? Definition of Ovary The ovary is a reproductive organ in females that produces eggs and secretes hormones like estrogen and progesterone, essential for regulating the menstrual cycle and fertility. Anatomy of the Ovary The ovary is a crucial organ in the female reproductive system, responsible for producing eggs and secreting hormones essential … Read more

Gonads (Ovaries and Testes)- Structure, Hormones, Regulation, Disorders, Functions

13 min readby
Gonads (Ovaries and Testes)- Structure, Hormones, Regulation, Disorders, Functions

What are Gonads? Definition of Gonads Gonads are reproductive glands in organisms that produce gametes (sperm in males and eggs in females) and secrete sex hormones (such as testosterone, estrogen, and progesterone) essential for sexual development and reproduction. In males, they are called testes, while in females, they are referred to as ovaries. Structure of … Read more

Endocrine System – Definition, Structure, Primary and Secondary glands

24 min readby
Endocrine System - Definition, Classification, Functions and Endocrine glands

What is Endocrine System? Definition of Endocrine System The endocrine system is a network of glands that release hormones directly into the bloodstream to regulate various bodily functions, including metabolism, growth, reproduction, and mood. It works in conjunction with the nervous system to maintain homeostasis and coordinate complex processes within the body. Structure of Endocrine … Read more

Thymus Gland – Definition, Structure, Location, Hormones, Functions

28 min readby
Anatomy of the Thymus

What is Thymus Gland? Definition of Thymus Gland The thymus gland is an important organ of the lymphatic system located in the chest behind the breastbone. It plays a crucial role in the development and maturation of immune cells known as T cells, which are essential for the body’s immune response. The thymus gland is … Read more

Pancreas – Diagram, Structure, Hormones, Functions, Disorders

16 min readby
Pancreas Anatomy Diagram

What is Pancreas? Definition of Pancreas The pancreas is a vital organ in the human body that serves dual functions: it acts as an endocrine gland by producing hormones such as insulin and glucagon to regulate blood sugar levels, and as an exocrine gland by secreting digestive enzymes and bicarbonate into the small intestine to … Read more

⚠️
  1. Click on your ad blocker icon in your browser's toolbar
  2. Select "Pause" or "Disable" for this website
  3. Refresh the page if it doesn't automatically reload