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Population was defined by Clarke in 1954.
The term population refers to the total number of individuals of a sp. occupying a particular geographic aera at a given time.
A sp. may have a single population or many population inhabiting diff. regions.
Population education is necessory for students to know about -
1. Uncontrolled population leads to environmental pollution, depletion of natural resources extinction of species.
2. Benefits to biosphere.
3. Advantages of a small family names to human.
4. Relation of population to the standards of life.
5. Methods of slowing down the growth of human population.
Excretio n I n Animal To give out nitrogenous waste products after oxidation of food is excretion. EXCRE T O R Y MATERIALS - 1 . AMMONIA - Animals are
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A newborn baby with a patent foramen ovale or a ventricular septal defect might be cyanotic (blue). Will a two-year-old with these defects also be cyanotic? Explain your answer.
What are the factors to an actual shift in the supply curve? Factors which cause an actual shift in the supply curve are described in below: When prices rise or fall this wo
Create a sketch of a petroleum trap. Write a history for how it came to the present (sketched) form following the rules of logical deduction.
Explain Spread Plate Method - Pure Culture Techniques? In this method, diluted microbial suspension containing about 30 to 300 colonies is spread uniformly on the agar surface
what is the organ of respiration in snaks
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Of which substance are microfilaments made? What are the properties of these elements that give motility to cells? Microfilaments are made of actin (a protein). The contractile
in what part of the human body aschelminthes found?
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