When parent plants are crossed, scientists refer to the first generation of offspring as?

Which step would a state health department most likely take to reduce lead exposure? promote health-planning operations to limit lead exposure at home.evaluate the number of countries affected by lead exposure.create general national guidelines for working with lead.carry out research on the worldwide effects of lead products.

Which of these contraceptive methods would be most beneficial for a female who wishes to avoid side effects or surgery?

The first step in treating water from a river or lake is usually