PR Chapter 1 STUDY GUIDE

What is the definition of the word ecosystem?

• A group of the same type of organism living in the same area
• All the living and nonliving things interacting in a particular area
• The process of creating offspring
• A small part that is meant to show what the whole is like

What is the definition of the word population?

• All the living and nonliving things interacting in a particular area
• A group of the same type of organism living in the same area
• When something stays mostly the same over time
• A small part that is meant to show what the whole is like

What is the definition of the word sample?

• All the living and nonliving things interacting in a particular area
• A small part that is meant to show what the whole is like
• The process of creating offspring
• When something stays mostly the same over time

What is the definition of the word stability?

• A group of the same type of organism living in the same area
• The process of creating offspring
• When something stays mostly the same over time
• A small part that is meant to show what the whole is like

Chapter 1 Question What caused the size of the moon jelly population in Glacier Sea to increase?

• There were more deaths than births in the moon jelly population.
• There were more births than deaths in the moon jelly population.
• The moon jelly's had a predators and were not being killed .
• The Glacier sea increased in size letting the Moon Jelly's to grow and expand their population.

Article Question Why do moon jellies gather in large groups?

• To protect themselves from predators
• To find more food easily
• To stay warm in cold water
• To help humans with research

Article Question How do moon jellies catch their food without long tentacles?

• By biting their prey
• By trapping food on their sticky undersides
• By chasing their food quickly
• By using other fish to catch food for them

Article Question What do walleye pollock eat to survive in the Arctic Ocean?

• Zooplankton
• Seaweed
• Jellyfish
• Algae

Article Question Why is it important for fishermen to keep track of the pollock population?

• To catch as many as possible
• To study pollock migration patterns
• To train pollock to help catch other fish
• To make sure the population doesn’t get too small

Article Question What are two ways zooplankton keep from sinking to the bottom of the ocean?

• They grow larger tails and hunt prey
• They hold on to larger fish
• They use gas-filled floats and flat body shapes
• They hide in coral reefs