Answer:
Formation of cuticles. (A P E X)
Explanation:
I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
Patterns incidence distribution and possible control of diseases as well as other factors pertaining to health
B. are trying to use the same resources
Answer:
I think True
Explanation:
You can refer to it for more information:
The coastal ocean zone and estuaries are alike in that both are important as breeding and nesting areas for birds. The depth of the water in an aquatic ecosystem determines the amount of sunlight that living things receive there. ... The water in freshwater wetlands is always brackish
