Organic Evolution Ch 2 Flashcards
What is spontaneous generations
The theory of which people believed complex organisms would spontaneously appear and had no parents
what is a geological time scale?
The correlation of rocks or fossils and time in the past
What is comparative embryology?
Most successful way to study animal evolution
Comparative anatomy
the log that organisms with similar structures shared a common ancestor
What is idealism?
idealism is easily applied to diverse religions in which the unseen ideal world is that of a supreme being
What is the “Great chain of being”
hypothesis of instead of a static universe there was a continuous progression of stages leading to a superior supernatural being
scale of nature
Each form represented a link in the progression from least perfect to most perfect organism
what was a binomial nomenclature
each species name defines its membership in a genus and provides it with a unique name and identity
what is a genus
Species that are closely related by their morphology
What is order and class
- related genera into orders
- class is made up of orders
applying the biological species concept allows taxonomist to seperate into different species group, these pairs can be referred to as
sibling species
what is a genetic species?
A group of genetically compatible natural populations that is genetically isolated from other such groups
what is monophyletic, polyphyletic, and paraphyletic?
- monophyletic- rising from one group
- polyphyletic- rising from two or more groups
- paraphyletic- includes some descendents from a single common ancestor but not all
Cladistics is?
a type of classification
what is a pleisiomorphic trait?
instances whena species character is similar to that character in an ancestral species
