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Introduction: The number of different species and the number of individuals in a given community are characteristics of a population. Differences in the characteristics of a population lead to variations in the populations.
Answer to Problem 1TY
Correct answer: A community with many individuals but few different species exhibits low species richness and high abundance. Hence, the correct answer is option c.
Explanation of Solution
Reason for correct answer:
The number of species in an ecological community is called species richness. Species richness simply refers to the number of different types of species in an area and does not include the number of individuals within a given species. Therefore, the description “species richness is low and its abundance is high in a community” indicates that the community has many individuals but few different species.
Option c. is given as “low species richness and high abundance”.
If many individuals but few different species are seen in a community, it is said to have low species richness and high abundance. Hence, the correct answer is option c.
Reasons for incorrect answer:
Option a. is given as, “low abundance and high species complexity”.
Species complexity refers to the identity and differences between the individual species. The number of individuals and species in a population does not play a role in the species complexity. Also, the species complexity in the given community is high and the abundance is low. Hence, option a. is incorrect.
Option b. is given as, “high stability”.
Certain evidences have been recorded and it state that a higher species diversity leads to a higher stability of the population. In the given community, the numbers of different species are few, therefore the species diversity is also low. This population is expected to have low stability. Hence, option b. is incorrect.
Option d. is given as, “high species diversity”.
The number of species in an ecological community is called species richness. Species richness of the given species is low as there are few different types of species. Hence, option d. is incorrect.
Option e. is given as, “high abundance and high species richness”.
In the given community, abundance is high as the number of individuals in the community is high. However, the species richness is low as the number of different species in the population is low. Hence, option e. is incorrect.
Hence, the options a., b., d. and e. are incorrect.
Thus, abundance refers to the number of individuals and species richness refers to the number of different types of species.
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Chapter 58 Solutions
Biology
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