Circle the word that tells what each living thing is.
Question 2
2.
Look at the pictures. The seal is a predator of the chinstrap penguin. It eats the chinstrap penguin for food.
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Question 5
5.
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.
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1
Question 3
3.
Question 4
4.
Question 6
6.
Question 7
7.
If the population of seals DECREASES, what will happen to the population of chinstrap penguins?
The population of chinstrap penguins will decrease.
The population of chinstrap penguins will increase.
Why?
Because chinstrap penguins eat seals, so the seals will die.
Because chinstrap penguins eat krill, and there will be more krill.
Because there will be fewer seals, so they will not eat as many chinstrap penguins.
When the phytoplankton decrease, will the population of krill increase or decrease?
The population of krill will decrease.
The population of krill will increase.
Why?
Because the chinstrap penguins will eat more krill.
Because the krill will not have enough phytoplankton to eat for food.
Because the krill will have more phytoplankton to eat for food.