These will help you when answering questions whether they are on worksheets and past papers. Learn these definitions off by heart by using flashcards. The process of moving digested food into the blood. The movement of molecules in and out of partially permeable cell membranes using the energy produced by respiration.
Abdomen in mammals is the portion of the body which is located below the rib cage, and in arthropods below the thorax. It is the cavity that contains stomach, intestines, etc. Abscission is a process of shedding or separating part of an organism from the rest of it.
Common examples are that of, plant parts like leaves, fruits, flowers, and bark being separated from the plant. Accidental refers to the occurrences or existence of all those species that would not be found Biology terms a particular region under normal circumstances.
The movement of cellular substances like ions or molecules by traveling across the membrane, towards a level of higher concentration, while consuming energy. The entire range of climatic and environmental conditions suitable to normal functions, process, and activities of a living organism.
Adaptation refers to the genetic mechanism of an organism to survive, thrive, and reproduce by constantly enhancing itself, by altering its structure or function, in order to become better suited to the changing environment. Read more on adaptations in desert animals.
The evolutionary diversification from an ancestral group of organisms, into a number of newer and more specialized forms, each suited to live in new habitats. Read more on animal adaptations. Aerial behavior is a type of behavior that deals with communicative or playful behavior.
It is most seen in whales and dolphins when they surface above water to either jump, leap, or just flit across. A small supplementary feather, growing from the underside of the base of the shafts of a body feather. It is found in many birds and essential to keep them warm. A tuft of long and loose feathers used by breeding herons and egrets, during courtship displays.
A thin-walled, air filled structure which is a part of the respiratory system of birds. The air passing through the air sac aids in their breathing and temperature regulation.
A structure designed to lift and control the airflow by making use of different levels of air waves. A bird in flight uses the concept of airfoil to control its speed. A broad snouted crocodilians of the genus Alligator found in subtropical regions. This reptile is known for its sharp teeth and powerful jaws.
Organisms that occur, originate, or occupy in separate geographical areas. A measurement of species richness in a natural unit specified area consisting of all plants, animals, and micro-organisms in a habitat functioning together.
Instinctive behavior performed towards the welfare of others, sometimes at personal cost.Here are all the Biology key terms and definitions at Revision Universe. They are compatible for all exam boards including IGCSE. Memorise them all to succeed.
Biology Terms - Glossary of Biology Terms and Definitions Biology refers to the science of living organisms. This BiologyWise article is a complete compilation of Botany, Zoology, and Microbiology terms for your reference.
Biology-online is a completely free and open Biology dictionary with over 60, biology terms. It uses the wiki concept, so that anyone can make a contribution. Biology definition, the science of life or living matter in all its forms and phenomena, especially with reference to origin, growth, reproduction, .
Information and definitions of the terms been taken from various reliable government publications and we have done our best to verify their accuracy.
molecular biology - the branch of biology that studies the structure and activity of macromolecules essential to life (and especially with their genetic role) morphology - the branch of biology that deals with the structure of animals and plants.