HELP please!
Which of the following is true of iron? (choose 2)

a)Iron is a trace element.

b)The iron in hemoglobin allows oxygen to be carried in red blood cells.

c) Potassium and iron form crystals to strengthen bones.

d) Iron regulates the acid and base level of fluids.

Question

HELP please!
Which of the following is true of iron? (choose 2)

a)Iron is a trace element.

b)The iron in hemoglobin allows oxygen to be carried in red blood cells.

c) Potassium and iron form crystals to strengthen bones.

d) Iron regulates the acid and base level of fluids.

anonymous · Answer

I know that iron is a trace element, but i need another one. Please help!

anonymous · Answer

I know it isn't the last one. That's for sure...

anonymous · Answer

yeah

anonymous · Answer

I would go with B. I know that blood cells carry oxygen. And C says that they enforce bones. I wouldn't say that one because Calcium is what makes and enforces bones. So just go with whichever you find more adequate.

anonymous · Answer

I chose a and b and got it right, thanks!!

anonymous · Answer

No problem!