Question

Which of the following make taking a population sample difficult (choose all that are correct)

A. The organism may be hard to capture without harming it.

B. The organism may be too small or too hard to find in order to count it.
C. For non-unitary organisms, it may be hard to tell what is an individual to count.

D. We need to take a representative sample of the population, which may be hard under some environmental conditions.

Answer 1

B.The organism may be too small or too hard to find in order to count it.

Counting the animal population is very difficult as there are many factors like they move places, active only during certain time, etc.

D.We need to take a representative sample of the population, which may be hard under some environmental conditions

It is a difficult process to obtain the samples under different environmental condition as the representative sample express the data accuracy and the characteristic of a population.