Example of Nodular roots, Velamen roots and Reproductive roots
Nodular roots: Plants of pea family have roots with nodules. Symbiotic nitr…
Nodular roots: Plants of pea family have roots with nodules. Symbiotic nitr…
Pneumatophores are negatively geotrophic (growing away from gravity) respira…
These are roots of parasites which suck nutrients from the host plant. …
These are chlorophyll bearing green, photosynthetic roots. Example: Tinospo…
Climbing roots: These aerial adventitious roots help weak stemmed plants to …
Stilt roots are aerial adventitious roots which grow obliquely down wards fr…
Prop roots grow vertically downwards from aerial branches.On reaching the soi…
Adventitious roots are modified for storage and many other functions like add…
Tap root are modified mainly for storage of food. They are known as tubers. …
Lamarckism is the first theory of evolution , which was proposed by Jean Bapt…
Phylum Porifera (Sponges) includes three classes, chiefly based on the type …
The ctenophora are a small group of solitary, free swimming , marine, plank…
Phylum Coelenterata (Cnidaria) They are aquatic, mostly marine, sessile or fre…
Pesticides may be a chemical substance or biological agent used against pests…
Insecticides are chemicals that destroy or kill insects. Insecticides are o…
A pollutant defined as any solid, liquid or gaseous substance present in such…
Water, the most abundant and wonderful natural resource is extremely essentia…
The word polymer means ‘many parts’. A polymer is a substance of high molecula…
These are polymers having strong intermolecular forces like hydrogen bondings.…
These are polymers in which the polymer chains are held together by weakest in…
These are polymers which can be easily moulded into any desired shape by heat…
These are certain polymers which on heating become infusible and insoluble. He…
Archaebacteria are a group of most primitive prokaryotes which are believed …
Halophiles (Haloarchaea) are named so because they usually in salt rich subst…
Thermoacidophiles: These archaebacteria have dual ability to tolerate high t…
Methanogens : These archaebacteria are strict anaerobes. Nutritionally they a…
