Horseshoe crabs and octopuses have blue blood. Which of the following is correct about their blood? Mark all that apply.

Inside the spleen, what sort of cell recycles worn-out red blood cells?

Which of the following is correct about carbon monoxide? Mark all that apply.

Catalysts facilitate chemical reactions by: Mark all that apply.

The recycled remnant of the heme group is what makes: Mark all that apply.

Up until the 1990s, many homes in England had stoves and ovens that burned coal gas instead of natural gas. Coal gas is made by heating coal in the absence of air. What two flammable gases are yielded by the reaction? Mark all that apply.

Only the beta globin chains within a hemoglobin molecule transport carbon dioxide.

When a hemoglobin molecule is recycled by spleen macrophages, what happens to the iron?

What is the primary metal ion catalyst in a catalytic converter?

What happens to the globin chains when hemoglobin is recycled by the spleen?