Asap ! what is the function of the endocrine system?

What is the difference between an igneous, sedimentary and metamorphic rock

Variety of living organisms; includes genetic, species, and ecological types.

Which is a genetic engineering advancement directly related to a career in biotechnology? 1) improving solar energy collection 2) transporting textiles at higher rates 3)creating crop foods that resist insect pests 4)repairing historical sites with quality materials