Showing posts from March, 2012
Hydra Hydra Obelia Obelia Gorgonia (Sea fan) Aurelia (Jelly fish) Pennatula (Sea pen) Adamsia (Sea anemone) Tubipora Physalia Brain coral (Meandrina) Coral reef���������…
Sycon Euspongia (Bath sponge) Spongilla
Nutrition is the getting and utilization of energy rich nutrients (food) by an organism. Food provides energy for life activities, materials for growth, maintains body temperature and repair tissues. Food consists of carbohydrate…
Click here for PDF Respiration is the oxidation of nutrients in the living cells to release energy for biological work. Breathing is the exchange of O 2 from the atmosphere with CO 2 produced by the cells.
Click here for PDF Circulation is the transport of nutrients, oxygen, CO 2 and excretory products to the concerned tissues or organs. For circulation, simple organisms (sponges , coelenterates etc) use water fro…
Click here for PDF Excretion is the elimination of metabolic wastes like ammonia, urea, uric acid etc. from the tissues. It is 3 types: 1. Ammonotelism: Process of excretion of NH 3 . Ammonotelic animals: Aquatic inve…
Click here for PDF Locomotion is the voluntary movements resulting in a change in location. Types of movement in human being · Amoeboid movement: By pseudopodia. E.g. Macrophages, leucocytes, cytoskeletal elements like…
NERVOUS (NEURAL) SYSTEM - Controls and coordinates the body activities. - Conducts and integrates the information. - Responses to stimuli.
Click here for PDF Endocrine system includes endocrine glands and their secretions (hormones). Hormones are non-nutrient chemicals that act as intercellular messengers and are produced in trace amounts.
Click here for PDF ANIMAL TISSUES A group of cells having same origin, structure and function are called the tissues. Animal tissues are 4 types: (i) Epithelial (ii) Connective (iii) Muscula…
Life is a unique, complex organization of molecules, expressing through chemical reactions which lead to growth, development, responsiveness, adaptation & reproduction.
Here is the huge collection of biological abbreviations. No. Abbreviation Full form 1. µ Electrophoretic mobility/ micron 2. 1,3 BPG …
