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प्रश्न
Explain any three important characteristics of population.
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
Association between sea anemone and Hermit crab in gastropod shell is that of.
The interaction in nature, where one gets to benefit on the expense of other is _________.
Predation and parasitism are which type of interactions?
Which principle/theory states that 'Two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior will be eliminated eventually.'?
Brood parasitism is best explained by the example of ____________.
Exarch xylem is found in:
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
Sea Anemone gets attached to the surface of the hermit crab. The kind of population interaction exhibited in this case is ______.
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 |
Give one example of Parasitism.
