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प्रश्न
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Deer
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उत्तर
Deer - Nos. / area
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संबंधित प्रश्न
Construct an age pyramid which reflects a stable growth status of human population.
Study the graph given below and answer the questions that follow :
(i) Write the status of food and space in the curves (a) and (b).
(ii) In the absence of predators, which one of the two curves would appropriately depict the prey population?
(iii) Time has been shown on X-axis and there is a parallel dotted line above it. Give the significance of this dotted line
"Analysis of age-pyramids for human population can provide important inputs for long-term planning strategies." Explain.
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
Define the carrying capacity.
Study the flow chart given below and complete the equation that follows by identifying 1, 2, 3 and 4.
Nt + 1 = Nt + {(1+ 2) − (3 + 4)}
Mention the different ways by which the population density of different species can be measured.
Give an account of population regulation.
Measures of ‘Central tendency’ refer to:
Population having large number of postreproductive and small number of prereproductive age group is called
`"dN"/"dt" = "rN" (("K"- "N")/"K")` in logistic growth "K" represents:
Age distribution in a population can influence
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Bacteria
The density of a population in a habitat per unit area is measured in different units. Write the unit of measurement against the following:
Banyan
Draw an age pyramid for the ‘zero population growth rate’.
List any four characters that are employed in human population census.
Given below is the Age Pyramid of the population in one of the states in India as per 2011 census. It depicts the male population on the left-hand side, female population on the right-hand side, newborns towards the base and gradually increasing age groups as we move from base to the top, with the oldest population at the top. Study this pyramid and comment upon the appropriateness of the Assertion and the Reason.
Percentage to the total population
Assertion: It is a stable population.
Reason: The pre-reproductive and reproductive individuals are almost in equal numbers and the post-reproductive individuals are relatively fewer.
Identify the type of pyramid given above. Write the identifying feature on the basis of which you identified it.
Important attributes belonging to a population but not to an individual are:
- Birth rate and death rate
- Male and female
- Birth and death
- Sex-ratio
Select the correct option from the given options:
