Question 1
Which drug, if taken during pregnancy, results in infants with severely deformed arms and legs?
◦ tetracycline
◦ thalidomide
◦ streptomycin
◦ salicylic acid
◦ codeine
Question 2
Which embryonic tissue is incorrectly associated with its derivative?
◦ skin from mesoderm
◦ nervous system from ectoderm
◦ liver from endoderm
◦ circulatory system from mesoderm
◦ respiratory tract from endoderm