Ecosystem Round 1

Which of these in the food chain is the top predator?

• Frog
• Owl
• Snake
• Catepillar

An organisms that photosynthesize is a?

• Consumer
• Decomposer
• Heterotroph
• Autotroph

An organisms that photosynthesize is a?

• Consumer
• Decomposer
• Heterotroph
• Autotroph

Which of the following correctly lists the levels in an ecosystem from smallest to the largest?

• ecosystem, community, population
• community, ecosystem, population
• population, ecosystem, community
• population, community, ecosystem

A symbiotic relationship in which an organism  lives on or in another organism and benefits at the other organism’s expense is?

• parasitism
• mutualism
• commensalism
• competition

any non-living part of the environment such as air, water, temperature, sunlight, air and soil that are factors that influence the living parts of the environment. 

• Biotic Factor
• Abiotic Factor
• Limiting Factor 
• Decomposer

Which process removes carbon dioxide from the atmosphere during the carbon cycle?

• photosynthesis
• respiration
• decomposition
• combustion

A group of organisms of the same species living in the same place is a

• habitat
• species
• population
• community

Which of these is a role of plants in the carbon cycle?

• Plants use oxygen to make carbon dioxide
• Plants take in carbon dioxide and then pass it directly to animals
• Plants take in carbon dioxide that is released by other animals
• Plants use carbon dioxide and produce nitrates  

The process by which bacteria returns nitrogen gas in the atmosphere is called

• denitrification
• nitrogen fixation
• respiration
• transpiration