Textbook Notes (363,149)
Canada (158,223)
Psychology (9,573)
PSYA01H3 (1,196)
Steve Joordens (1,052)

Chapter Three Notes

4 Pages
Unlock Document

University of Toronto Scarborough
Steve Joordens

PSYA01H3 Chapter Three: - Darwin came up with concept of biological evolution - biological evolution: changes that take place in the genetic and physical characteristics of a population or group of organisms over time -> argued that over time, organisms originate and become adapted to their environments by biological means - adaptive significance: effectiveness of behaviour in aiding organisms to adapt to changing environmental conditions - novelty seeking: tendency to engage in behaviours that lead to new experiences - psychologists interested in understanding both ultimate causes and proximate causes of behaviour - ultimate causes: events and conditions that, over successive generations, have slowly shaped the behaviour of our species - proximate causes: namely immediate environmental variables that affect behaviour - Darwin then became interested in artificial selection - artificial selection: procedure i which particular animals are deliberately mated to produce offspring that possess especially desirable characteristics - natural selection: the consequence of the fact that, because there are physical and behavioural differences among organisms, they reproduce differentially -> within a given population, some animals - the survivors - will produce more offspring than will other animals -> Alfred Wallace proposed same idea as well - natural selection based on 2 premises: 1) individuals within a population, show variability in heritable behavioural and physical characteristics 2) the capacity of the environment to sustain a population of any species, is limited; producing competition - reproductive success: number of viable offspring an individual produces relative to the number of viable offspring - variation: the differences among members of a species, including physical characteristics and behavioural characteristics www.notesolution.com
More Less

Related notes for PSYA01H3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.