Living Things Change

The non-living conditions around a living thing are called its ___

• environment
• ecosystem
• food chain
• food web

Which of these items is NOT usually considered part of an environment?

• temperature
• predators
• precipitation
• pollution

A system of living things and their environment is called ___

• the geosphere
• an ecosystem
• the water cycle
• ecology

A characteristic that helps an organism live in its environment is called ___

• an alteration
• an adaptation
• a mutation
• a transformation

About 360 million years ago, the Earth was much warmer, and the land was covered with ___

• hills and mountains
• forests and swamps
• rivers and streams
• glaciers and permafrost

About 360 million years ago, there were dragonflies that were the size of ___

• mosquitos
• small birds
• large birds
• airplanes

About 300 million years ago, what condition caused many plants to become extinct?

• the climate became drier and cooler 
• the giant insects died out
• too much oxygen in the atmosphere
• the large animals became extinct

Plants make chemical energy through the process of ___

• respiration
• oxidation
• photosynthesis
• reduction

The peppered moth comes in two types: ___

• hairy and bald
• short and long
• large and small
• light and dark

After the environment had been polluted for a long time, there were ___

• more dark moths than light ones
• more light moths than dark ones
• more dark birds than light ones
• more light birds than dark ones