English
Karnataka Board PUCPUC Science 2nd PUC Class 12

List any four characters that are employed in human population census. - Biology

Advertisements
Advertisements

Question

List any four characters that are employed in human population census.

Short/Brief Note
Advertisements

Solution

  1. Birthrates
  2. Death rates
  3. Sex ratio
  4. Age distribution
shaalaa.com
  Is there an error in this question or solution?
Chapter 13: Organisms and Populations - SHORT ANSWER [Page 94]

APPEARS IN

NCERT Exemplar Biology [English] Class 12
Chapter 13 Organisms and Populations
SHORT ANSWER | Q 16. | Page 94

RELATED QUESTIONS

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.


What is reproductive fitness? Explain it with the help of an example.


Answer the following question.
What is "population" according to you as a biology student? 


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.


Population having large number of postreproductive and small number of prereproductive age group is called


Age distribution in a population can influence


Which of the following would necessarily decrease the density of a population in a given habitat?


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



What type of population growth is represented by the above age pyramid?


Comment on the following figures: 1, 2 and 3:

A, B, C. D, G, P, Q, R, S are species


Important attributes belonging to a population but not to an individual are:

  1. Birth rate and death rate
  2. Male and female
  3. Birth and death
  4. Sex-ratio

Select the correct option from the given options:


The number of lily plants in a pond was found to be 50. After one year, the number. increased to 65. Calculate the natality of lily plants.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×