Water, sunlight, air, nutrients
Answer:
we need lymphatic system too,it is as important as circulatory system.
Explanation:
The lypmphatic system is part of the circulatory system, known as lymphatic veesels.
The answer is Volcanic activity I believe sorry if it is wrong
Answer:
Earth worms breath through their skin
Answer:
Increase occurs in fresh water input.
Decrease occurs in the salinity of the bay.
Explanation:
The low rate of fresh water input and the presence of high amount of salts in water decreases the population of producers such as grasses in bay ecosystem. Due to this decrease, the population of the marine animals decreases due to the low availability of food for herbivorous organism that lives in the bay. The negative feedback mechanisms will be achieved if increase occurs in fresh water input and decrease occurs in the salinity of the bay.