diversity and adaptations of organisms

These are heterotropic organisms (mainly animals). They are not capable of synthesising organic food and so feed on other organisms (may be plants or animals) to meet their food requirement. They may be further classified as follows:..

The variations at the level of the gene which form the basis of the differences between related organism as well as the diversity among organisms is called gene mutation. Gene mutation is defined as a sudden discrete change in the genetic material of gene which is heri..

The comparative anatomical studies of various types of organisms show structural and functional differences and similarities between various species. For example, the basic structure of all the flowers is the same with the whorls of calyx, corolla, androecium and gynoecium. However, each..

Biodiversity Changes in an ecosystem Fluctuations in population size in an ecosystem Water, carbon, and nitrogen - cycle between abiotic resources and organic matter in the ecosystem Oxygen cycles via photosynthesis and respiration Stability of producers and decomposers in an e..

Biodiversity Changes in an ecosystem Fluctuations in population size in an ecosystem Water, carbon, and nitrogen - cycle between abiotic resources and organic matter in the ecosystem Oxygen cycles via photosynthesis and respiration Stability of producers and decomposers in an e..

Where members of two different populations are mutually and actively inhibitory to each other. In such a case competition benefits the organism, which is more suitably adapted while the other is at a disadvantage. The size of population of the latter decreases, finally leading ..

Most desert animals are nocturnal and avoid the heat of the day by burrowing into the cooler soil. Animals include ants, locusts, lizards, Gila monster, coral snake, rattle snake, burrowing owls, Gambel's quail, kangaroo rats, rabbits, camel, skunk, badger foxes, jackals and desert cats. In general..

The phenotype is the physical expression of the organism. The phenotype shows variations due to differences in the environmental conditions in a habitat. Such variations among individuals produced due to local conditions of the habitat is called as phenotypic plasticity . Species, which..

Physical, chemical and mathematical sciences follow a specific set of rules and regulations. They are governed by a set of laws such as the law of gravity, the laws of thermodynamics, the law of conservation of mass and so on. However, biological sciences, in the strict sense, do not follow a..

Food chain studies help, a) understanding the feeding relationships and the interaction between organisms in any ecosystem. b) comprehend the energy flow mechanism and matter circulation in ecosystems. c) understand the movement of toxic substances and the problem of 'Biological magnifica..