When blood becomes deoxygenated it now travels thru the
to make its way back to the heart and then lungs to pick up more oxygen

someone pleaseee fill in the blank

Vena cava also know as (SVC).

Explanation:  Blood provides oxygen and nutrients to the body and removes carbon dioxide and wastes. Oxygen-poor blood returns from the body to the heart through the superior vena cava also know as (SVC) and also inferior vena cava (IVC), these are the two main veins that bring blood back to the heart.

answer; i believe the correct answer is (sporophyte);

the correct answer is c   with the systems