Answer:
The Ecological Footprint measures the amount of biologically productive land and sea area an individual, a region, all of humanity, or a human activity that compete for biologically productive space
You should look into this website, it’s got some pretty good information, I truly recommend it x
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4204195/
<span>blood, lungs and blood vessels that make up the circulatory system.
... The network of veins, arteries and blood vessels transports
oxygenated blood from the heart, delivers oxygen and nutrients to the
body's cells and then returns deoxygenated blood back to the heart</span>
<span>Follicle-stimulating hormone</span>
Plants release oxygen into the atmosphere through photosynthesis. without plants, we cant breathe.