Circle the word that tells what each living thing is.
Look at the pictures. The seal is a predator of the chinstrap penguin. It eats the chinstrap penguin for food.
If the population of seals DECREASES, what will happen to the population of chinstrap penguins?
Why?
Look at the pictures. Krill live in the water near the tundra. Many people fish for them. They take them out of the water and eat them. What will happen to the krill population?
The krill population will _________________.
Look at the pictures. Climate change means the Earth is getting hotter. It is causing ice to melt and disappear. Phytoplankton live in ice, so the population of phytoplankton is DECREASING.
When the phytoplankton decrease, will the population of krill increase or decrease?
Why?
