Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact,still have small pelvis and leg bones that are remnants from this ancestor. Whatare these caled?Vestiglal structureO Homologous strucreO Sympatric structureO Molecular homologyIn the 1890s, hunting reduced the northern elephant seal population to only 20individuals. Due to conservation efforts, their population size today is above30,000. Of what is this an example?Founder effect

Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small pelvis and leg bones that are remnants from this ancestor. What are these called? O Vestigial structure O Homologous struce e Sympatric structure e Molecular homology

Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small pelvis and leg bones that are remnants from this ancestor. What are these called? O Vestigial structure O Homologous struce e Sympatric structure e Molecular homology

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter17: Processes Of Evolution

Section: Chapter Questions

Problem 10SQ: The difference between sympatric and parapatric speciation is ___. a. parapatric speciation occurs...

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Concept explainers

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.

Question

Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact,
still have small pelvis and leg bones that are remnants from this ancestor. What
are these caled?
Vestiglal structure
O Homologous strucre
O Sympatric structure
O Molecular homology
In the 1890s, hunting reduced the northern elephant seal population to only 20
individuals. Due to conservation efforts, their population size today is above
30,000. Of what is this an example?
Founder effect

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