Speciation Models and Post-reproductive Barriers Quiz
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Questions and Answers

What is the term for the relationship of body size to shape, anatomy, and behavior?

  • Polymorphism
  • Phenotypic variation
  • Genetic divergence
  • Allometric variation (correct)

Which type of variation results from modification of environmental conditions and not changes in genotype?

  • Allometric variation
  • Genetic variation
  • Neurogenic variation
  • Habitat variation (correct)

What causes color change in certain species like shrimps and fishes in response to the environment?

  • Genetic divergence
  • Parasite-induced variation
  • Neurogenic variation (correct)
  • Allometric growth

Which term refers to conspicuous structural modifications produced by parasites on host organisms?

<p>Parasite-induced variation (A)</p> Signup and view all the answers

What term describes differences between male and female individuals of a species?

<p>Sexual dimorphism (C)</p> Signup and view all the answers

What phenomenon has contributed to a better understanding of the nature of species by studying local variations among populations?

<p>Microgeographic variation (B)</p> Signup and view all the answers

Which type of variation involves the relationship between body size and shape?

<p>Allometric variation (C)</p> Signup and view all the answers

Which type of variation occurs due to the direct effect of the physical environment on phenotype?

<p>Habitat variation (B)</p> Signup and view all the answers

'Gynandromorph' and 'intersexes' are terms used to describe variations related to:

<p>Sex differences (C)</p> Signup and view all the answers

What term describes species that produce both sexual and asexual morphs?

<p>Holocyclic species (D)</p> Signup and view all the answers

What is the major problem in microtaxonomy according to Mayr and Ashlock (1975)?

<p>Sorting individuals into species (B)</p> Signup and view all the answers

In microtaxonomy, what does the term 'phenon' refer to?

<p>Varieties, sexual dimorphisms, and age stages within a population (D)</p> Signup and view all the answers

According to Simpson (1961), what is an essential criterion in the Essentialist species concept?

<p>Evolutionary lineage and morphological difference (B)</p> Signup and view all the answers

What is the main weakness of Henning's (1966) view on evolutionary species?

<p>Ignoring peripatric speciation (D)</p> Signup and view all the answers

What aspect distinguishes Ring species according to the Phylogenetic Species Concept?

<p>Evolutionary lineage shared by all populations (A)</p> Signup and view all the answers

What type of isolation is exemplified by sympatric speciation?

<p>Ecological isolation (A)</p> Signup and view all the answers

'Biochemical barrier' preventing fertilization between species is an example of which reproductive isolation mechanism?

<p>Gametic isolation (B)</p> Signup and view all the answers

What defines allopatric speciation?

<p>Physical barriers impede gene flow between populations (A)</p> Signup and view all the answers

'Sympatric speciation' is most likely to occur when populations exhibit:

<p>Similar habitat preferences within the same region. (B)</p> Signup and view all the answers

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