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Population Density - Biological Stress
You are aware of what might follow an uncontrolled growth of human population. There will be competition for common consumables and for space. But .this is not merely a human problem. Too thick population densities of plants can result in the competition for common nutrients, water and photosynthetically active radiation. The effect can be a self inhibition or inhibition of other plant species growing in the same environment. That is one of the reasons why weeds are removed from croplands.
Environment All organisms are intimately dependent on the environment from which they derive their sustenance. Organisms from virus to man are obligatorily dependent on the envi
How are water, mineral salts and food (sugar) transported throughout the plant? Water, mineral salts and sugar are transported throughout the plant through conductive vessels f
Q. What are zoonoses? What are few examples of zoonoses transmitted by birds? Zoonoses are human diseases transmitted by animals. Psittacosis, a bacterial disease, cryptococcos
1. The genes for ruby eyes (rb), tan body (t) and cut wings (ct) are all found on the X-chromosome of Drosophila melanogaster. All of these are recessive traits. They map in the or
Explain the interaction of vitamin A with Iron? Iron: Iron status of an individual correlates with vitamin A. The deficiency of vitamin A has been found to be associated with
What is Anti-arrhythmic pacemaker defibrillators ? Antiarrhythmic drugs (AADs) are classified according to whether they exert blocking actions predominantly on sodium, potassiu
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Q. Of what substances is the nucleolus made? Is there a membrane around the nucleolus? Nucleolus is a region within the nucleus made of proteins and ribosomal RNA (rRNA). It is
how can petorl formed
Are nematodes exclusively parasites? There are parasitic roundworms, containing parasites of plants, but there are also free-living nematodes.
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