Short Answer TypeIn a population these rates refer to per capita births.
Example. If in a pond there are 20 plants last year as through reproduction
In a population these rates refer to per capita births.
Example. If in a pond there are 20 plants last year as through reproduction 8 new plants are added. Taking the current population to 28 we calculate birth rate as F/20 = 0.4 offspring per plant.
(b) Attributes which a population shows and not individual.
1. Death ratio.
2. Sex Ratio.
Long Answer Type(a) adaptations of desert plants and animals.
(b) adaptations of plants to water scarcity.
(c) behavioural adaptations in animals.
(d) importance of light to plants.
(e) Effect of temperature or water scarcity and the adaptations of animals.
Define the following terms and give one example for each:
(a) Commensalism
(b) Parasitism
(c) Camouflage
(d) Mutualism
(e) Interspecific competition
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