Jellyfish, corals, and hydras belong to the group of animals called cnidarians.
The main characteristic of this group is that all of its members possess specialized cells called cnidocytes which often produce venom and have a role in capturing the animals prey.
Survival??
That’s a complete guess
The keyword here is "area per volume" which is available in both cases. Besides capillaries are smaller than arteries they have in total more area as there are many vessels of then. The More the area/volum, the less the velocity
Over the course of more than a century, the worlds economy relies on capitalism. This is the idea of starting businesses and investing in them to make them grow faster and eventually make more money. However, global warming is a factor that pushes against the idea of capitalism because it negates the idea of using industrial factories. With the rise of global warming, the less factories our world can support leading to the fall of capitalism worldwide.
Hazardous waste can be criminal to our society because it pollutes every part of the ecosystem, including air, water, and land. By doing so, it can create a huge problem. What it does is it effects the natural lifestyle for many animals that make up the ecosystem and can ultimately result in a disaster among all life on earth.
1. Break down of Food into Energy 
Oxygen
2. Absorb X - Rays in Bones Calcium
3. Cell Membrane Function Sodium
4. All Organic Compounds Carbon
