An ecosystem is made up of _______ and ________ things.

• Living and nonliving
• Alive and dead
• Plants and animals
• Land and water

Populations contain more than one member of the species. Which one of these is a population?

• Deer and mice
• 10 squirrels
• squirrel
• squirrel, deer, and mice

What does the word organism mean?

• Living thing
• Nonliving thing
• Organs in your body
• Organ player

What is another word for an animal's home?

• Habitat
• Niche
• Population
• Organism

What is the role an organism plays in its ecosystem?

• Habitat
• Niche
• Organism
• Population

What 4 things does an organism need to survive?

• Food, water, shelter, space
• Food, friends, shelter, space
• Water, shelter, prey, predators
• Shelter, food, water, humans

In which type of symbiosis does one benefit and one is harmed?

• Symbiosis 
• Mutualism
• Parasitism
• Commensalism

Choose the complete and logical food chain.

• sun-plant-rabbit- eagle
• deer - squirrel- plant-sun
• sun -deer-plant- eagle
• eagle- squirrel-rabbit- plant- eagle

The role of plants in a food web is 

• consumer
• decomposer
• predator
• producer

the substance to be dissolved in a liquid

• solute
• solvent
• dissolve
• mixture