Organisms and Environments

Which organism make their own food through the process of photosynthesis? 

• decomposer
• consumer
• herbivore
• producer 

What is needed for plants to produce sugar?

• water, sunlight, carbon dioxide
• water, sunlight, oxygen
• water, sunlight, nitrogen 
• water, glucose, sunlight

Field mice eat corn. Which would most likely happen if the field mouse population grew?

• There would be more corn to feed the field mice.
• There would be less corn due to the mice eating it.
• The habitat would get overpopulated because the mice woudl eat too much.

Which is a difference between abiotic and biotic factors?

• abiotic factors are plants and biotic factors are animals
• biotic factors are plants and abiotic factors are animals
• abiotic factors are all living things and biotic factors are all nonliving things
• abiotic factors are all nonliving things and biotic factors are all living things

What are the nonliving parts of the ecosystem? This includes temperature, water, sunlight, air, and soil.

• biotic factors
• communities
• abiotic factors
• microorganisms 

If the population of prey increases, the population of predators will ________because of the availability of food.

• decrease
• stay the same
• increase

Which of the following is a producer - consumer relationship found in this food web? 

• berries and mushrooms
• grouse and grizzly bear
• seeds and butterfly
• grasses and marmot

What are all members of one kind of organism that live in a particular area?

• population
• microrganisms
• community
• environment

______is the organism that usually causes harm to the ____without immediately killing it.

• decomposer, parasite
• host, parasite
• organisms, parasite
• parasite, host

Which organisms eat other living organisms to survive?

• producers
• consumers
• decomposers
• scavengers