Question

In some cases, polpulation density is measured in terms of biomass rather than in terms of numbers becouse ________________________.

• A. it is a more meaningful measure when the considered organisms vary greatly in size.
• B. it is more convenient when population is huge and counting is impossible or very time consuming
• C. it is a relatively constant measure
• D. both a and b

Answer 1

The correct option is D both a and b

Although the total number is most approprite measure of population density, but in some cases it is difficult to determine.In a forest area, spouse there are 200 Pathenium plants but only a single huge banyan tree with a large canopy. Stating that the population density of banyan is low relative to that of Pathenium, amount to underestimating the great role of bayan in that forest community.