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ABIOTIC FACTORS
INTRODUCTION Abiotic and biotic factors or [...READ FULL]
EXCRETION IN LOWER INVERTEBRATES
EXCRETION IN LOWER INVERTEBRATES :- Every organism possess different mechanisms, organs and different excretory product. For example porifera and hydra can perform excretion through body surface where as platyhelminthes possess a specialised cells known as flame cells. [...READ FULL]
CAUSES OF EXTINCTION OF WILDLIFE
Introduction This article includes comprehensive [...READ FULL]
OSMOREGULATION OF FRESHWATER AND MARINE INVERTEBRATES
Regulation of osmotic pressure of an organism body fluid is refer to as osmoregulation. It allow to maintain balance of water content, fluid content and electrolytes. Hence due to osmoregulation body neither become too dilute nor become too concentrated. Right concentration of solute and amount of water must be maintain by any aquatic [fresh or marine] and terrestrial organisms. It can be mostly achieved by excretion. [...READ FULL]
LOCOMOTION IN PROTOZOA
LOCOMOTION IN PROTOZOA :- Moving ones body is an essential need of any organism. Some organism are sessile while other moves at very high speed. Some organisms moves very slowly such as amoeba or euglena where as other can move fastest example leopard. [...READ FULL]
HUMAN PAPILLOMAVIRUS (HPV)
INTRODUCTION Human papillomavirus (HPV) infection [...READ FULL]
BIOTIC FACTORS
INTRODUCTION Biotic factors and abiotic factors [...READ FULL]
ENERGY RICH BONDS, ENERGY TRANSDUCER, ISOMERISM AND RESONANCE
INTRODUCTION ENERGY RICH BONDS, ENERGY [...READ FULL]
ADVANCED NERVOUS SYSTEM IN ANNELIDS
The advanced nervous system in annelids is generally compare with coelenterates. The well developed nervous system can be seen here in form of a pair of cerebral ganglia (brain) and a double ventral nerve cord. This ventral nerve cord bears ganglia and lateral nerve in each segment as annelids are true segmented animals. [...READ FULL]
CELLS OF IMMUNE SYSTEM
INTRODUCTION Cells of immune system and the [...READ FULL]