Answer:
The movement of the water pushes the denser water down, while the upwelling current pushes the less dense water down.
Explanation:
Uowelling currents cause the ocean waters to munch vertically. this movement is done in relation to the temperature and density of the water. This is because this type of current causes cold, nutrient-rich and denser water to be pushed to the surface, while hot, less dense water is pushed down.
They could adapt to live together so that for example one starts eating only seaweed while the other starts eating only organic matter so they don't compete for food. They could also adapt like when squirrels are separated into those who eat on trees and those who eat on the ground. The 2 urchin types could split into those who eat of the ground and those that eat what floats and drifts.
Answer:
It has ready labor force
Explanation:
The labor force participation rate is the percentage of the civilian population 16 years and older that is working or actively looking for work. It is an important labor market measure because it represents the relative amount of labor resources available for the production of goods and services.