Why are some minerals, such as copper, only needed in small amounts in your diet?

Place the steps tor the formation of the enzyme pepsinogen in correct order

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called