Textbook Notes (369,082)
United States (206,190)
Psychology (87)
PSY 335 (9)
C.Miller (2)
Chapter 3

child psych chapter 3.pdf

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PSY 335

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September 4th 2014Aristotleepigenesisthe idea that there is an emergence of new structures and functions during developmentConceptionResults form the union of 2 gameteseggspermMale releases 40 million12 billion sperm per ejaculationmore than 500 billion in lifetimeFemales release about 500 eggs in lifetime Sex differences begin at conceptionApprox 120150 males are conceived for every 100 females because the sperm with Y chromosome are lighter and swim faster to the egg than those with an XMale embryos are miscarried at a higher rate than femaleBoys are more vulnerable to developmental disorders and illnessDevelopmental Processes4 major processesCell Division results in the proliferation of cellsCell Migration is the movement of cells from their point of origin to somewhere else
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