Question

Dominant species represent the most abundant
A) Herb that binds the soil and provides organic matter to it
B) A shrub that appears for the first time
C) First tree
D) Species having a major effect on the physical environment

Answer 1

Hint:Any organism which dominates in an ecological community or gives a better competition to its same types is called a dominant species.

Complete answer:
Dominance-subordination behavior is a hierarchical social order in a flock or herd in which there is a ranking of individuals. Often the females are subordinate to males and the young are subordinate to adults. High-ranking or dominant individuals casually displace the low-ranking or suborder ones from areas of shelter and sources of food and water, whereas low-ranking individuals withdraw Q submit on the approach of high-ranking ones. Aggressive Posture Submissive Posture Each individual in a social group knows its rank, and all live peacefully. If a conflict arises, the higher-ranking indiVidual gives a formal threat display, and the lower-ranking one at once assumes a submissive or appeasement posture to avoid injury . Thus, there is no serious bloodshed, and confrontations are averted by ritualized submission. If a new individual joins the group a member is injured, threats and tights ensure to readjust the sums of the members in the social group. A member that remains absent from the group for some time is downgraded. Dominance once established is more or less permanent. In a social group, the highest rank always has a first chance at the available food, mate, and resting site.

Therefore, option D is the correct option.

Notes: Plants and animals having the highest population play a significant role in the environment.The greater the population the greater the biomass.