___________ was (were) the first to directly observe and record ...

[charchew]

___________ was (were) the first to directly observe and record the physiological responses of humans engaged in sexual activity under laboratory conditions.
 
  a. Alfred C. Kinsey
  b. Henry Havelock Ellis
  c. Masters and Johnson
  d. Howard Kelly

Question 2

An embryo/fetus is especially susceptible to harmful substances during the ________ of pregnancy.
 
  a. 1st trimester
  b. 2nd trimester
  c. 3rd trimester
  d. all 3 trimesters are equal in susceptibility

[nguyenhoanhat]

Answer to Question 1

c

Answer to Question 2

a

[charchew]

Great answer, keep it coming

[sarah_brady415]

Thanks for the timely response, appreciate it