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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.

Protocoperation is a kind of mutualism in which one species interacts with other and both are benefited. For example interaction of Oxpecker bird and buffalo. The bird gets food and removes ticks from Buffalo.

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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?

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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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