Life Science Ohio State Test Review

A producer?

• Eats other plants and animals
• Makes its own food
• Eats dead plants or animals
• Makes toys for kids

A decomposer?

• Eats dead plants or animals and breaks down to put nutrients in the soil
• Eats plants or other animals for food
• Makes its own food
• Machine that gathers trash

This is a chart listing some of the organisms in the Tundra ecosystem. Which food chain correctly identifies the flow of energy?

• berries --> arctic fox --> ringed seal --> salmon
• polar bear --> caribou --> grasses --> sun
• lichen --> lemming --> arctic fox --> polar bear
• wold --> arctic hare --> berries

The process of using sunlight, carbon dioxide, and water to make sugar and oxygen is called _________?

• chlorophyll
• evaporation
• photosynthesis
• transportation

This organism is microscopic and
lives in soil. It feeds off of dead
and dying organisms, creating
carbon and nitrogen, which is
sent back into the soil to be used
over. Is it a...

• Producer
• Consumer
• Decomposer

The snake is a predator to what prey in this food chain?

• frog
• grass
• grasshopper
• hawk

Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.

• commensalism
• mutualism
• neutralism
• competition

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.  What kind of relationship is this?

• Mutualism 
• Parasitism 
• Commensalism 

A relationship between two species where one benefits while the other is harmed.

• Mutualism
• Commensalism
• Parasitism
• Naturalism

A relationship between two organisms in which one organism benefits and the other is unharmed

• Mutualism 
• Competition
• Parasitsm 
• Commensalism