Tag: absorption
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Soil as Ecological Factor
Introduction Soil consists of weathered layer of Earth’s crust with products of decay of living organisms intermingled. In soil, thus, abiotic & biotic components are intimate. Soil is considered to be chief organizing centre for land ecosystems. Pedosphere: Outermost layer of earth that is composed of soil & subject to its formation. Pedogenesis: Process of…
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NUTRITION IN ANIMALS – Class 7
Animals are the living organisms which do not have plastids in their cell, thus are unable to perform photosynthesis ad moreover they do not have cell wall, thus they are grouped into another kingdom i.e. Animalia. Animals thus do not posses cell wall nor plastid. Lack of plastid results in a different mode of nutrition…