Twin studies have shown that: a. Concordance rates for medical ...

[futuristic]

Twin studies have shown that:
 
  a. Concordance rates for medical disorders are higher than for psychological disorders.
  b. There is a strong case for a genetic basis if the identical twin concordance rate is higher than the rate for fraternal twins.
  c. There is only weak evidence that autism has a genetic basis.
  d. All of the above

Question 2

Potassium ions are most concentrated in the ___ fluid.
 
  A) intracellular
  B) extracellular
  C) intracellular and extracellular
  D) non-polarized

[dreamfighter72]

Answer to Question 1

B

Answer to Question 2

A