192 1st Exam Flashcards
Microevolution
What’s going on in our bodies
right now
Nuts and bolts that creates the patterns
Macroevolution
process of
microevolution has created a history that
constrains the process
■ they record the history of life on
the planet and constrain the
current process
Who was one of the first philosophers to have elements of evolutionary thought?
Aristotle
19th century belief of evolutionary studies?
All species were created just the way
they look now and they never changed
There was no such thing as extinction and everything was still alive
Adaptations were produced by divine
intervention
No natural process to produce an
exquisite design (ex. eye)
True or false: Historical evolutionary studies believed in extinction and adaptation
False
He believed in a “lost
world” and thinks that he might encounter a
fossil
Alexander von Humboldt
What codes for the coat color of mice?
MC1-R or melanocortin-1 receptor
What codes for eumelanin for mice coat color?
a-MSH
What codes for pheomelanin for mice coat color?
ASP
Exaptation or adaptation?
Kea birds had beaks for seeds and insects, but when sheep arrived, they used their beaks for their skin and fat
Exaptation
Exaptation or adaptation?
The wings of penguins being suited to swim, not fly.
Adaptation
numerous related lineages arise in a relatively short time & evolve in many different directions as they adapt to different habitats or way of life
Adaptive radiation
This refers to the variety of adaptations observed within a species or group of related species.
Adaptive diversity
Postulates to know if a population is evolving
Postulate 1: Individuals are diverse/differ
Postulate 2: Variation is inherited
Postulate 3: Difference in reproductive success
Postulate 4: Mating is nonrandom
What gives rise to variation
Mutations