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An activity that benefits other oragnism...

An activity that benefits other oragnisms at the individuals own expense is called

A

Co-operation

B

Aggregation

C

Recognition

D

Altruism

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The correct Answer is:
D
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SANTRA PUBLICATION-ECOLOGY, ENVIRONMENT AND POPULATION-Long answer type Questions
  1. An activity that benefits other oragnisms at the individuals own expen...

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  2. Define biotic community. Who coined the term biocoenosis for biotic co...

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  3. What do you mean by stratification and state three significance of it.

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  4. Define symbiosis and how protocooperation different from symbiosis.

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  5. Define (i) Natality, (ii) Mortality, (iii) Population density, (iv) Se...

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  6. Write a brief note on 'waggle dance'.

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  7. Briefly explain alturistic behaviour and give reasons with proper expl...

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  8. With the help of a diagram show the sigmoid growth curve.

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  9. Mention five factors responsible for the increase in Human population.

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  10. Write brief notes on (i) Amensalism (ii) Parasitism (iii) Symbiosis (i...

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  11. Explain briefly- (i) Polymorphism (ii) Territory (iii) Biotic stabilit...

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  12. Explain the dominance of species in a biotic community?

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  13. Explain S-shaped and J-shaped growth curves for human. Under what cond...

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  14. What are the different types of adaptation in animals? Explains with s...

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  15. Describe about the morphological, anatomical and physiological adaptat...

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  16. Briefly describe about characteristics of Population.

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  17. Briefly describe about different types of biomes.

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