Chapter 1 Flashcards
Function-
property of a part as it works in an organism
Role-
how part is used in environment during organisms life
Homology-
similar ancestry
Analogy-
similar function
Homoplasy
similar appearance
Functional Morphology-
relates structure to function
Systematics-
study of evolutionary relationships
Phylogeny-
hypothesis about patterns of relationships among species
The relationship can take on 1 of 3 forms?
Monophyly, Paraphyly, Polyphyly
Monophyly-
most recent common ancestor and ALL descendants of that ancestor
Paraphyly-
most recent common ancestor of all members of a group but not all descendants of that ancestor
Polyphyly-
does not include most recent common ancestor of all members of a group; has 2 separate evolutionary origins
Protostomes are…
spiral and determinate
Deuterostomes are…
Radial and indeterminate