The loss of the mineral is associated with purging (i. e., vomiting or using laxatives) and may cause heart rhythm disturbances.

How can you approximate the number of calories required to keep you in energy balance?

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of