TASK DEFINITION: Given a scientific question, generate a correct answer to it.
PROBLEM: What is continually released during childbirth through a positive feedback mechanism and prompts uterine contractions to fetal head toward the cervix?

SOLUTION: oxytocin

PROBLEM: Herbivores are heterotrophs that eat only or mainly what?

SOLUTION: plants

PROBLEM: An acellular, external cuticle protects the _________.

SOLUTION:
epidermis