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CAUSES OF EXTINCTION -
1. HUNTING -
2. FOREST FIRES -
It is held that forest fires resulting from human activity or mistake have caused the elimination of many sps. of wild life.
3. DISTRUCTION OF HABITATES -
Destruction of natural habitats causes the most serious threat to wild life.
Habitats are destroyed by many human activities due to development work, deforestation, pollution, cleanliness (vultures are about to extinct).
4. PHYSICAL ALTERATION OF ENVIRONMENT -
Any physical change in the routes of the migratory birds or fishes adversely affects them.
If jean-Baptiste de Lamarck was correct, than a. Natural selection would lead to the spread of favourable traits within a population b. Finches that stretched their beaks to access
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Can you give me an example of the species that crossed a few habitats?
Why is Superoxide radical scavenging of beverages such red wine, grape juice measured at 560 nm?
Septa prevent oxygenated and deoxygenated blood. Give reason
Nature of Metabolites in Sieve Tubes The phloem sap contains three major classes of organic compounds - organic acids, amino acids and sucrose besides some cations, anions and
What are the best known representatives of the platyhelminth phylum? The most popular representatives of the platyhelminthes are worms that cause human diseases, like taenia an
Define Exclusion chromatography - basic separation technique? It is a chromatographic process, in which separation of the sample components takes place according to the molecul
How does the swim bladder of fishes work allowing fishes to control their depth under water? From Hydrostatics it is called that an object does not sink if its density is equal
Q. What are the major substances transferred from the mother to the fetus through the placenta? And from the fetus to the mother? From the mother to the fetus the major transfe
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