Which of the Following Statements Regarding the Definition of Species

question 29

Multiple Choice

Which of the following statements regarding the definition of species is false?

• A) The ecological species concept identifies species in terms of their ecological niches.
• B) The phylogenetic species concept defines a species as a set of organisms that shares a common ancestor and forms one branch on the tree of life.
• C) The morphological species concept relies upon comparing the DNA sequences of organisms.
• D) Under the biological species concept, the gap between species is maintained by reproductive isolation.

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Definitions:

Null Hypothesis

A hypothesis used in statistical testing that assumes no significant difference or effect exists between certain states or variables.

Observed Frequency

The number of times a particular value or category of data occurs in a set of data, used in the analysis of categorical variables.

Expected Frequency

The theoretically calculated frequency of an event or outcome based on the probabilities in a statistical experiment, often compared to observed frequencies in chi-squared tests.

Test Statistic

A statistic calculated from sample data, used to determine whether to reject the null hypothesis.