biology definitions for kids

A chromosome map is a graphic representation of a linkage group in the form of a line which shows by points the sequence of the genes and the relative distance between the genes it contains. A chromosomes map is also called a linkage map or genetic map. Since the frequency of crossing over is used ..

Immunity is defined as the ability to eliminate complexes of protein molecules differing in structure from those present in the healthy animals. There are two kinds of defence mechanism against microbes a) nonspecific defence mechanism b) specific defence mechani..

Growth is defined as an increase in the size and weight of an organism due to synthesis of new protoplasm. Growth takes place at 2 different levels in an organis..

Production of offsprings by a single parent without the formation of gametes is called asexual reproduction. It is also called as somatogenic reproducti..

Thus, Respiration can be broadly defined as "the breakdown of organic compounds into simpler compounds accompanied by the release of energy in the form of ATP" Since most often the substrate is glucose, the general equation for respiration can be written as follo..

Definition - Presence of dangerous unnatural ingredients causing imbalance in the ecosystem and health hazards to human beings and animals can be called as pollution. That is, pollution is a phenomena where natural ingredients are replaced or damaged by presence of dangerous unnatural ing..

An ecosystem can be defined as 'a structural and functional unit of biosphere or segment of nature consisting of community of living beings and the physical environment, both interacting and exchanging materials between them'. E. P. Odum, an American ecologist, defined ecology as, 'the study of the..

Presence of dangerous unnatural ingredients causing imbalance in the ecosystem and health hazards to human beings and animals can be called as pollutio..

Bio - war - Bio - war refers to biological war. It means that biological organisms are used as weapons to carry out the war. It is latest form of war. It is carried out by spreading the pathogens in specific part of geographical region to deliberately spread ..

Bio - war refers to biological war. It means that biological organisms are used as weapons to carry out the war. It is latest form of war. It is carried out by spreading the pathogens in specific part of geographical region to deliberately spread a deadly disease..