In the Minnesota Study of Twins Reared Apart, identical twins ...

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In the Minnesota Study of Twins Reared Apart, identical twins were found to be
 
  a. very similar in all characteristics studied, regardless of whether they were raised together or apart.
 b. similar in some characteristics studied, but not all, regardless of whether they were raised together or apart.
  c. similar in all characteristics studied only if they were raised together.
 d. similar in some characteristics studied, but not all, only if they were raised together.

Question 2

A Z line is
 
  a. a segment of myofibril.
 b. a type of muscle fiber.
 c. the boundary of a sarcomere.
 d. the path of a muscular action potential.

[Edwyer]

Answer to Question 1

b

Answer to Question 2

c

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[xiazhe]

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