Living Things and Ecosystems

Animals that live in a pond ecosystem all need which of the following? 

• gills
• air 
• sunlight
• lily pads

What does the process of digestion break down? 

• food
• air
• sunlight
• decomposers

All food chains_____________________

• have more consumers than producers
• produce and use same amount of energy
• begin with a producer
• are unhealthy 

Plants produce sugar and oxygen through what process? 

• Digestion
• Carbon Dioxide 
• Fermentation
• Photosynthesis 

An organism that gets food by eating other organisms? 

• producer 
• consumer
• herbivore 
• decomposer 

An ecosystem where many different kinds of organisms can meet their needs is known to be__________.

• healthy 
• pond habitat  
• unhealthy 
• severe drought

Non-native specie causing harm to its environment is called an___________.

• extinct 
• algae 
• invasive species 
• consumer

What do ecologists study? 

• plants 
• photosynthesis 
• ecosystems 
• dinosaurs 

How does energy enter an ecosystem? 

• sunlight
• soil 
• animals 
• invasive species 

What are producers? 

• organisms that store extra food 
• organisms that make their own food
• breaks down dead organisms 
• decomposes nutrients