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प्रश्न
List any four characters that are employed in human population census.
उत्तर
- Birthrates
- Death rates
- Sex ratio
- Age distribution
APPEARS IN
संबंधित प्रश्न
(a) Name the two growth models that represent population growth and draw the respective growth curves they represent.
(b) State the basics for the difference in the shape of these curves
(c) Which one of the curves represents the human population growth at present? Do you think such a curve is sustainable? Give reason in support of your answer.
"Analysis of age-pyramids for human population can provide important inputs for long-term planning strategies." Explain.
List the attributes that populations but not individuals possess.
Define population
Answer the following question.
"The size of a population for any species is not a static parameter." Justify the statement with specific reference to fluctuations in the population density of a region in a given period of time.
Give an account of population regulation.
Which one of the following organisms reproduces sexually only once in its lifetime?
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Fish
An individual and a population has certain characteristics. Name these attributes with definitions.
Write the best method to measure the population density of a single Banyan tree in comparison to Partlzenium weeds in a forest by an ecologist. Explain and justify your answer.
