Author Question: The presence of teratogens during pregnancy creates the risk of problems in development. Your ... (Read 92 times)

a0266361136 · **on:** Jun 22, 2018

The presence of teratogens during pregnancy creates the risk of problems in development. Your textbook identifies several principles that govern the relationship between teratogens and normal development. List and describe three of those principles.

What will be an ideal response?

Question 2

The body weights of identical twins vary greatly depending upon whether they were reared together or apart.

a. True
b. False
Indicate whether the statement is true or false

patma1981 · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

There are five such principles presented by the textbook. The accurate answer will list three of the following five and will provide a discussion that adequately reviews the premise of each one:
a . The impact of a teratogen depends on the genotype of the organism.
b . The impact of teratogens changes over the course of prenatal development.
c . Each teratogen affects a specific aspect (or aspects) of prenatal development.
d . The impact of teratogens depends on the dose.
e . Damage from teratogens is not always evident at birth but may appear later in life.

Answer to Question 2

False