After 96 hours of exposure, surviving tadpoles are examined for internal and external malformations of the gut, face, heart, tail, notochord, fin, eye, and brain.
(surviving tadpoles; are examined; for internal and external malformations of the gut, face, heart, tail, notochord, fin, eye, and brain; T:After 96 hours of exposure)
surviving tadpoles
are examined
for internal and external malformations of the gut, face, heart, tail, notochord, fin, eye, and brain T:After 96 hours of exposure