TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: The endocrine system is a complex network of glands and hormones that regulates many of the body's functions, including growth, development and maturation, as well as the way various organs operate.

SOLUTION: The endocrine system produces most of the hormones that regulate body functions.

PROBLEM: 30 Humans have 23 pairs of chromosomes;

SOLUTION: Humans have 23 pairs pairs of chromosomes.

PROBLEM: Birth  typically occurs at about 38 weeks after fertilization, so the fetal period generally lasts about 30 weeks.

SOLUTION:
The fetal period lasts approximately 30 weeks weeks.

