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10 May 2019

The Biological Species Concept is based upon which of the following criteria that are used to distinguish a separate species?

reproductive isolation

diagnostic morphological features

monophyly

species-specific mate recognition mechanisms

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Patrina Schowalter
Patrina SchowalterLv2
10 May 2019
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Related questions

Mules are considered hybrids, not a separate species. Mules result from the joining of gametes from a female horse (n=32) and a male donkey (n=31).

Define hybrid. What would the diploid (2n) number be for the mule that would be produced in the mating of the female horse and male donkey described above?

Mules are sterile, meaning they cannot produce gametes of their own. In terms of chromosomes, explain why this could be.

For each concept, explain whether it would suggest that a mule is a separate species or not a separate species.

Biological Concept:

Mate-Recognition Species Concept:

Genetic Species Concept:

Morphological Species Concept:

Phylogenetic Species Concept:

Hundreds of different dog breeds have been recognized, and you have probably already identified your very favorite breed! Historically, dog breeds have been traditionally grouped together as one species. However, there is an ongoing debate about what actually defines a "species." This week, you have learned about several different species concepts (each defining the term "species" based on different criteria.) Refer to the Morphological Species Concept, the Biological Species Concept, and the Phylogenetic Species Concept in your discussion about whether all dogs from all breeds should be grouped as one species.

You are studying an isolated population of birds that are morphologically distinct from other populations of their species. Female birds of this population will not breed with males from other populations when they are artificially brought into contact. You do detailed DNA analyses and find no differences between your focal population and the rest of the species. Based on this information, which of the following concepts would identify your focal population as a unique species?

A. Biological species concept

B. Morphological species concept

C. Evolutionary species concept

D. Both A and B

E. A, B and C

Follow up Q: Do you think your focal population is a unique species? Why or why not?

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