Measuring population density in terms of number is sometimes meaningless or difficult to determine'. Explain with examples how population density is determined in such cases.

How is population density calculated?

Write definitions of the following: Population Density

Write an equation to calculate population density at time t+1 .

Describe the basic processes that determine population density . Also give the equation for population density .

Select and write the correct answer : Which of the following causes increase in population density ?

The formula for determination of density of unit cell is

The density of a material in the shape of a cube is determined by measuring three sides of the cube and its mass. If the relative errors in measuring the mass and length are respectively 1.5% and 1% , the maximum error in determining the density is:

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

When birth rate is more than death rate the density of population.