Topic 5.4: Cladistics Flashcards Preview

HL Biology > Topic 5.4: Cladistics > Flashcards

Flashcards in Topic 5.4: Cladistics Deck (5):
1

Define clade

A clade is a group of organisms that have evolved from a common ancestor

2

Define cladograms

Cladograms are tree diagrams where each branch point represents the splitting of two new groups from a common ancestor

3

Define convergent evolution

Convergent evolution is the independent evolution of similar features in species with distinct lineages

4

Define homologous structures

Traits that are similar because they are derived from common ancestry are termed homologous structures

5

Define analogous structures

Traits that are superficially similar but were derived through separate evolutionary pathways are termed analogous structures

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