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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Long Answer Type
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.
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Short Answer Type
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 ?
49.
What is the ecological principle behind the biological control method of managing with pest insect ?
Predation is the ecological principle behuind the biological control pf managing with insects. The predators prey upon pests and regulate and keep a check on their numbers in the habitat. For example - Gambusia fish preys upon larvae of mosquito thus regulate the number of mosquitoes.
Short Answer Type
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