Sunlight. Based on the sunlight you receive you have three zones.
1. Sunlight zone- There is enough sunlight here and photosynthesis can happen. More than 90% of marine animals live in this zone.
2. Twilight zone- A small amount of light is here and no plants grow here. The fish who live here are the ones who have adapted to the little light. Lantern fish is an example.
3. Midnight Zone- 90% of the ocean is in this group. It is entirely dark and the temperature is freezing.
The pumping of the heart is tied to the respiratory system
The genetic combination of their parents.
I would say hydrophilic molecules that provide energy for the body. Hope it helps!
Answer:
Hunter syndrome is a very rare, inherited genetic disorder caused by a missing or malfunctioning enzyme. In Hunter syndrome, the body doesn't have enough of the enzyme iduronate 2-sulfatase.