What is not part of the hepatic portal system?

Inferior vena cava.

Explanation:

The hepatic portal system may be defined as the connection of different veins that carry blood from the different parts of the body to the like spleen, intestine, stomach to the liver.

The hepatic portal system helps in the detoxification of the blood. This system consists of the liver, hepatic arteries, hepatic veins, splenic vein and the mesentric vein. The inferior vena cava helps in the circulation of blood to the heart not to the hepatic portal system.

Thus, the answer is inferior vena cava.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.