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Direct Development vs Indirect Development.
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Phylogenetic systems of classification attempt to reflect what type of relationships among species?
evolutionary
What are the 5 species concepts?
Biological species concept, phenetic species concept, reproductive competition species concept, evolutionary species concept, and the recognition species concept.
Which type of evolution requires speciation?
Speciation is the evolutionary process by which new biological species arise.
Scientists group species on an evolutionary tree based on what?
gene similarities, physical structures, and fossil record.
The evolutionary pattern illustrated by the finch species on the Galapagos Islands is an example of?
Divergent Evolution Pvt Locklear was here ;)
How is Evolutionary Trends affect Species Sorting?
Benthic snail larvae are more likely to become isolated and therefore speciate at a higher rate creating more lineages.
What is a Evolutionary Trends?
Evolutionary trends are either progressive or retrogressive. During progressive evolution new structures are created whereas in retrogressive evolution the existing structures are reduced or eliminated.
What is the term for an evolutionary change in one species that result in the evolutionary change of another species?
This phenomenon is known as coevolution, where changes in one species can drive changes in another species as they interact and exert selective pressures on each other over time.
Large-scale evolutionary trends are the result of?
macroevolution .........novanet
How can the evolutionary history of a species be displayed?
The evolutionary history of a species is often displayed in a phylogenetic tree. This will clearly show the history of the species, which is also known as phylogeny.
How does Evolutionary Trends affect Natural Selection?
Adaptation for stronger shells.
Large scale evolutionary trends are the result of?
macroevolution .........novanet
The evolutionary history of a species can be displayed in a?
The evolutionary history of a species is often displayed in a phylogenetic tree. This will clearly show the history of the species, which is also known as phylogeny.
What is meant by orthoselection?
Orthoselection :A primary selective pressure of a directional kind, which results in a self-perpetuating evolutionary trend. Species selection, via the effect hypothesis, has been advanced as an alternative explanation for such trends.
What information can be obtained from a cladogram?
Cladograms tell you which animals are the closet in relationship, which are the farthest, what characteristics the animals have in common, what characteristics they would need to have in order to be closely related to them, and the number of shared characteristics between the animals.
What are the species in Polytoma and why?
what are the species to be included in the reconstruction of the evolutionary history of Polytoma and why?
How does Evolutionary Trends affect Irreversibility?
Air-breathing animals do not return to breathing water.
