Question
Biology Question on organisms and populations
Which one of the following is one of the characteristics of a biological community?
A
Natality
B
Mortality
C
Sex-ratio
D
Stratification
Answer
Stratification
Explanation
Solution
Throughout a community, organismsare not uniformly distributed, instead, they occur in definite zones.
- Stratification is the spatial arrangement of populations.
- A forest can have 5 to 7 strata with large, medium, short canopy trees, shrubs, herbs, etc.
- It is useful to accommodate many organisms of various types to ensure the efficient use of resources.
The animals occupying similar strata are called ecological equivalents though they are geographically separated.