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Consumers - Biotic Components
These are also called as phagotrophs or heterotrophs. The organisms grouped under this category cannot manufacture their own food but obtain their energy and nutrients by feeding on other organisms. Some eat primary producers (green plants) to get their food supply and are called herbivores. In terrestrial ecosystem typical herbivores are insects, birds and mammals. Two important groups of herbivores mammals are rodents and ungulates. Primary consumers also include parasites (fungi, plants or animals) of plants. In aquatic ecosystems (freshwater and marine) the typical examples of herbivores are: small crustaceans and molluscs. Most of these organisms such as water fleas copepods crab larvae, mussels and clams are filter feeders and extract the minute, primary producers from water.
Spermatogenesis In multicellular organisms the reproductive process commences with the production of gametes. The gametes are the sex cells that develop inside the gonads, th
T ub e rc u l o si s Tuberculosis in animal is caused by Mycobacterium bovis , M. tuberculosis and M. avium and among these the most important causal agent is M.
What is the role of water in metabolism and photosynthesis I
Is monoculture a system that contributes to great biological diversity of an ecosystem? Monoculture means that in a large area a single crop (only single species of plant) is c
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Q. What are the main bryophyte groups? The major bryophyte groups are the mosses, the hornworts and the liverworts.
Cardiac Output - Circulation The cardiac output can be determined in a number of ways. The most common method is the Fick's principle. A. Fick a German physiologist in 1870 de
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