Consumers-biotic components , Biology

Consumers

Heterotrophs (other nourishing) are incapable of photosynthesis and depend on organic food derived from animals, plants or both. Consumers can be divided into two broad groups namely macro and micro consumers. (i) Macro consumers or phagotrophs feed on plants or animals or both and are categorised on the basis of their food'sources. Herbivores are primary consumers which feed mainly on plants e.g. cow, rabbit. Carnivores feed only on animals. Secondary consumers feed on primary consumers e.g. wolves. Carnivores which feed on secondary consumers are called tertiary consumers e.g. lions which can eat wolves. Organisms which consume both plants and animals are called omnivores e.g. men. (ii) Micro consumers - Saprotrophs (decomposers or osmotrophs) are chiefly bacteria and fungi which obtain energy and nutrients by decomposing dead organic substances (detritus) of plant and animal origin. Some of the products of decomposition such as inorganic nutrients released in the ecosystem are reused by producers and thus recycled. Earthworm and certain soil organisms such as nematodes, and arthropods are also detritus feeders and help in the decomposition of organic matter.

Posted Date: 12/10/2012 5:14:26 AM | Location : United States







Related Discussions:- Consumers-biotic components , Assignment Help, Ask Question on Consumers-biotic components , Get Answer, Expert's Help, Consumers-biotic components Discussions

Write discussion on Consumers-biotic components
Your posts are moderated
Related Questions
Q. Measurement and Evaluation of Food Texture? Kinesthetic characteristics deal with the sense of feel, just like the characteristics of appearance deal with the sense of sight

Mr. Smith is a 72 year male diagnosed with hypertension.  Along with hypertension, Mr. Smith has been diagnosed with right-sided heart failure.  The following are his list of medic

Laws Governing Ocular Movements Hering's Law of Equal Innervation states that equal and simultaneous innervation flows from the brain to yoke muscles in all binocular movement

what arachnid is beneficial

whats ur clear definition of virus

What are the two main groups into which flowering plants are divided? Angiosperm plants are separated into a) Monocotyledonous (monocots) and b) Dicotyledonous (dicots

Formation of cocoon in earthworm: In earthworm segments from 14 to 17 are swollen. Skin on these segments is thick and glandular. This is called clitellum. When ovaries ma

ANTICOAGULANTS (a ) Heparin (hepar = liver) . It is synthesized by mast cells of connective tissue and liver cells. It is a heteropolysaccharide. It increases the effectivit

What is the Still Retorts? Still Retorts are used in canning plants for heating foods in glass containers or different sizes of cans. These retorts are usually cylindrical in s

Messenger RNA (mRNA) are the proteins are not synthesized directly from the genomic DNA. Insteadof that an RNA template (a precursor mRNA) is constructed from the sequence of gene