+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

Organisms And Populations

Question
CBSEENBI12001090
Wired Faculty App

List any three important characteristics of a population and explain.

Solution

Three important characteristics of a population are:
(i) Population size and population density-  is the number of individuals or organisms per unit area or  unit volume. It is denoted by N.
(ii) Birth or natality rate- It is generally expressed as number or births per 1,000 individuals of a population per year. It increases the population size (total number of individuals of a population) and population density.
(iii) Death or mortality rate - Death or Mortality rate. It is  the number of deaths per 1,000 individuals of a population per year.


 

Some More Questions From Organisms and Populations Chapter

To live in groups is beneficial because :

Ants give information to their companions :

Population density is denoted by the symbol

The number of births during a given period in the
population that are added to the initial density is 

 :

The departure of a individual from a population is called :

In which interaction only one species is benefitted while the other species is neither harmed nor benefitted ?

Which of the following interaction both species suffer ?

In which of the following interaction both species are benefitted ?

Fill in the blanks with suitable words :

1. The optimal capacity of the organism to produce offspring is called........................

2. Rapid increase in human population is called........................

3. Mathematical expression of the growth of population is called........................

4. Yeast cells grown in a culture medium show........................growth curve.

5. Main cause of population explosion is........................

State true or false :

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation