Spirogyra-habitat, structure, reproduction and germination of zygospore
Spirogyra Spirogyra is a green algae belonging to the class chlorophyceae. The genus Spirogyra comprises more than 300 species and most of them are free […]
Month: March 2017
Developmental biology of Frog-Embryonic Development
Embryonic Development of Frog When sperm fertilize the egg, streaming movements are set up in the egg and these results in distribution of materials. So […]
Conducting System of Heart Beat
Conducting System of Heart Beat Heart possesses the property of autorhythmicity which means it generates it own electrical impulse and beat independent of nervous and […]
Human Heart-Gross structure and Anatomy
Human Heart-Gross structure and Anatomy Heart Heart is a myogenic muscular organ that pumps blood throughout the blood vessel by repeated rhythemic contraction. Figure: […]
Nutrients-Foods-Balanced Diet
Nutrients, food and balanced diet For the proper functioning of human body, correct proportion and quantity of nutrients or diet is required which is termed […]
Nutrition and mode of nutrition
Nutrition and mode of nutrition Nutrition Nutrition is the physiological process of acquiring energy for the metabolic activities, growth or other life processes. The organism […]
Feedback Mechanism-Negative feedback and Positive feedback
Feedback Mechanism-Negative feedback and Positive feedback Feedback Mechanism: It is the general mechanism of nervous or hormonal control and regulation in Human. Feedback system consists […]
Homeostasis-Control System
Homeostasis-Control System Homeostasis is a physiological process of a body to maintain constant internal environment in response to fluctuations in outer external environment. Internal environment […]
Sliding Filament Theory of Muscle Contraction
Sliding Filament Theory of Muscle Contraction The mechanism of muscle contraction is explained by sliding filament model. This theory was proposed by H.E Huxley and […]
Ovarian cycle-Menstrual Cycle
Ovarian cycle (Menstrual cycle) It is a series of cyclic changes occurring in the reproductive tract of female with the periodicity of 28 days It […]