Answer: These animals eat algae in the water.
Explanation: They clean the water in other words.
The ecosystem is an ecological system consisting of all of its biotic and abiotic factors
The function of a plant's cambium layer is to <span>produce new cells.</span>
Explanation:
imagine I teach my child at my home , it doesn't involve any commercial purpose . I don't need any money from my child , so that's free market economy.
