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Morphospecies Concept in Biology

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Questions and Answers

What is the main distinguishing factor used in the Morphospecies Concept?

Genetic markers

Ecological niches

Evolutionary history

Morphological characters (correct)

What is a key requirement for distinguishing features to arise according to the Morphospecies Concept?

Asexual reproduction

Isolation from gene flow (correct)

High gene flow

Extensive hybridization

Which of the following is NOT a disadvantage of the Morphospecies Concept?

Difficulty in identifying cryptic species

One polymorphic species classified as multiple species

Subjective features used for classification

Over-emphasizing genetic markers (correct)

What type of traits are identified to define a monophyletic group according to the Phylogenetic Species Concept?

Synapomorphies Signup and view all the answers

In the Phylogenetic Species Concept, what does a monophyletic group consist of?

Ancestral population and all descendants Signup and view all the answers

What type of traits are missing in more distant ancestors but are shared by common ancestors and descendants?

Synapomorphies Signup and view all the answers

What is the primary use of DNA sequence data in identifying synapomorphies?

Identifying shared derived characteristics Signup and view all the answers

In the context of speciation, what is the key factor that marks the beginning of genetic isolation?

Geographic isolation Signup and view all the answers

What distinguishes allopatric speciation from sympatric speciation?

Geographic isolation process Signup and view all the answers

How do vicariance events contribute to allopatric speciation?

By physically splitting populations Signup and view all the answers

What is the main focus of biogeography as mentioned in the text?

Investigating geographic distribution of species Signup and view all the answers

Based on the information about snapping shrimp populations separated by an isthmus, what can be inferred about their phylogenetic relationships?

Each pair of separated species are each other's closest relatives. Signup and view all the answers