Which of the fallowing is the most serious effect of water pollution for humans?

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?