Ecosystem is interconnected of living things
        
             
        
        
        
Answer:
A
Explanation:
Fungi produces spores and heterotrophic. For example, mushrooms produce spores.
 
        
             
        
        
        
The US Environmental Protection Energy or EPA is responsible for ensuring the country's drinking water to be safe and with good quality. It is in the Safe Drinking Water Act of 1974 that reclaims in ensuring the purity of drinking water Americans drink. Under the said Act, every citizen has his/her own roles and responsibilities. However, the implementation of such is governed by the EPA.
        
             
        
        
        
Answer:
A,C,D are the correct answers
Explanation:
 
        
                    
             
        
        
        
Answer:
A food chain is a representation of what eats what in an ecosystem.
A combination of food chains is termed as a food web.
Example of two food chains in a food web are :
Example No 1: 
Plant----- Grasshopper------ Frog---snake--- bacteria
Example No 2:
Plant---- rabbits---- fox---- bacteria
In a food chain, producers are usually plants and algae which are able to make their own food. Consumers feed on the plants. In example no 1, grasshoppers are primary consumers, frogs are secondary consumers, snakes are tertiary consumers.
In example no 2,plants are producers, rabbits are primary consumers and foxed are secondary consumers.
Decomposers are organisms that feed on the dead organisms in a food chain. In both the examples of food chain, bacteria are the decomposers.