41.
List the various abiotic environmental factors factors.
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42.
If a marine fish is placed in a fresh water aquarium, will the fish be able to survive ? Why or why not ?
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43.
Define phenotypic adaptation. Give one example.
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44.
Most living organisms cannot survive at temperature at about 45°C. How are some microbes able to live in habitats with temperatures exceeding 100°C ?
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45.
List the attributes that populations possess but not the individuals.
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46.
If the population growing exponentially doubles in size in 3 years, what is the intrinsic rate of increase (r) of the population?
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47.
Name important defence mechanisms in plants against herhivory.
48.
An orchid plant is growing on the branch of mango tree. How do you describe this interaction between the orchid and the mango tree ?
The orchid grows as an epiphyte on branch of mango tree. The interaction between orchid and the mango tree is termed commensalism where in orchid derives benefit of interaction while mango tree is neither harmed nor benefited.
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49.
What is the ecological principle behind the biological control method of managing with pest insect ?
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