Question

A synthetic character of biotic community is
a) Fidelity
b) Dominance
c) Physiognomy
d) All of the above

Answer 1

Hint: Biotic community is a group of organisms that live together and interact with each other present within a specific habitat or environment. The ecosystem consists of both biotic and abiotic factors together. The biotic community is also called biota.

Complete answer:
A community consists of the organism which takes part in the direct or indirect interaction among each other. These interrelationships help them in their survival. There are two main types of community which include the major and the minor community. Various characters can be used to describe the features present within a community. The various synthetic characters present in the community are fidelity, presence, and constancy, dominance, physiognomy, frequency, and species diversity.
Fidelity is the factor that defines the degree to which a particular species is restricted to grow in a given community. The higher the fidelity rate the lesser number of restrictions of communities. And vice versa. Dominance is when a particular species outgrows the other species then they struggle for existence and the outgrown species is said to be dominant in that community. The dominant species makes it hard for the other species to survive. They suppress the growth of the other species living in that community.
Physiognomy- the presence of the dominant species in a particular community gives a rough idea about the growth form present in that community. The pattern indicates the occurrence of the organism in groups or scattered form.

So, the answer is option D.

Note:
The other synthetic characters of the community include species diversity which is a very basic feature of a community. The other character is the frequency which indicates the dispersion of particular species in a given area.