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प्रश्न
Explain any three important characteristics of population.
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उत्तर
Some important characteristics of population are:
- Population density: Density of a population is the total number of individuals in that population present per unit area at a specific time.
- Natality: Natality is the birth rate of a population.
- Mortality: Mortality is the death rate of a population.
संबंधित प्रश्न
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle, so as to facilitate parasitization of its primary host.
Give one example of Mutualism.
Explain different population interactions with examples.
Match the following and choose the correct combination from the options given below.
| Column I | Column II |
| Mutualism | Lion and deer |
| Commensalism | Round worm and man |
| Parasitism | Birds compete with squirrels for nuts |
| Competition | Sea anemone on hermit crab |
| Predation | Barnacles attached to Whales |
Differentiate between predator and prey.
The interspecific interaction between Cuckoo and Crow is ______
What is the interaction between two species called?
Give one example for the following:
A parasitic angiosperm
Match the Column I with Column II.
| Column I | Column II |
| A. Lichen | (i) Commensalism |
| B. Shark and Pilot fish | (ii) Mutualism |
| C. Barnacles on the back of a whale | (iii) Symbiotic obligatory relationship |
| D. Sharks and dolphins | (iv) Competition |
