SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the best way to place a quadrat?
A
Place it where you like
B
Divide the sample area into a grid and use a random number generator to choose a square.
C
Throw the quadrat so it’s random
D
Divide the sample area into a grid and choose a square.
Explanation: 

Detailed explanation-1: -The usual procedure for randomly positioning quadrats is this: A base line is marked out along the edge of the habitat using a measuring tape. It must extend all the way along the edge of the habitat. Random numbers are obtained using either a table or a random number generator on a calculator.

Detailed explanation-2: -The average number of individual organisms within the quadrat area is called the population density. The quadrat equation uses the population density to calculate the estimated total population or N: N = (A/a) x n, where A is the total study area, a is the area of the quadrat, and n is the population density.

Detailed explanation-3: -Divide the area to be sampled into a grid using measuring tapes placed at right angles to each other. Use random numbers to generate coordinates within the grid on which to place the quadrats. Place a quadrat at each coordinate. More items

There is 1 question to complete.