Which organ system is most directly involved in the transport of oxygen?

Explanation:

The organ system most directly involved with the transport of oxygen would be the lungs, followed by the heart

haploid cells;

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above