A frog population is living in the lake near the campus. After a field survey, scientists reported that there are estimated 650 frogs in the lake area (which is 130 squared meter in size).
The population density of this frog population is .

A. 650 frogs
B. 5 frogs per squared kilometer
C. 5 frogs per squared meter
D. 13 frogs per squared meter
E. 130 frogs

Option C.

5 frogs per squared meter.

Explanation:

Population density is the total number of organisms per unit area.

It is calculated as Population ÷ unit area.

The population of the frog = 650

The unit area = 130 square meter.

650÷130= 5.

The answer is 5 frogs per square meter.

Square meter can be used for small space or small area.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.