Wegener Proposed That the Continents Were Once All Together as a Supercontinent

question 63

Essay

Wegener proposed that the continents were once all together as a supercontinent he named ____________________,which then split into a northern supercontinent called ____________________ and a southern supercontinent called ____________________.

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Definitions:

Brood Pouch

A special chamber used by certain animals for carrying and protecting their offspring.

Gene Recruitment

The evolutionary process where a gene acquires a new function, different from its original role.

Paralog

Genes that arise by duplication within the same genome and may diverge to perform functions related to or distinct from the original gene.

Ortholog

Genes in different species that evolved from a common ancestral gene by speciation and retain the same function.