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Organisms and Populations

One Word Answers

21. Mycorrhizae is an example of which interaction?

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22. Name two plants which are carnivorous.

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23. Name a larvicidal fish that eats mosquito larvae.

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Short Answer Type

24. Give an example of proto-cooperation.

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25. Define amensalism.

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One Word Answers

26. What would happen to a population when birth rate decreases and death rate increases ?

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Short Answer Type

27. What do you understand by carrying capacity?

Carrying capacity is the maximum number of individuals that a habitat can support and sustain indefinitely without significantly depleting or degrading the available resources.

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28. Name two processes which result in decrease in population

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Long Answer Type

29.

How does age distribution help in study of population?
Or
Give representation of a declining pyramid of age for human population.
Or
Give representation of stable pyramid of age for human population?

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30. What is parasitism ? Define parasite, host. What are kinds of parasite ?

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