3 years ago

What is Portal System?

Biology

2 answers:

rewona [7]3 years ago

5 0

Answer:

d. It is where an artery breaks into two sets of capillaries before returning to the heart.

Explanation:

A Portal System is where an artery breaks into two sets of capillaries before returning to the heart.

Mekhanik [1.2K]3 years ago

5 0

D I believe is the answer sorry if it’s not

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