Ecosystem Review

A bee depends on certain flowers for food. The flowers depend on the bee to... 

• carry pollen for reproduction.
• make sugars for photosynthesis
• remove waste for healthy growth.
• sting herbivores for protection.

Which group of organisms eats other living things in order to survive? 

• producers
• consumers
• scavengers
• decomposers

Which statement most accurately describes a pond ecosystem?

• Coral reefs grow in ponds.
• Evergreen trees grow in ponds.
• Cattails and lily pads grow in ponds.
• Grasses and wildflowers grow in ponds.

A winter storm kills many of the plant that deer eat. The result will most likely be...

• The deer will shed much of their coats.
• The deer will travel in a herd.
• The deer will become thin.
• The deer will begin eating meat.

Which type of organism would be most affected if many plant-eating animals became extinct in an ecosystem?

• decomposers
• consumers
• omnivores
• producers

Which could be a secondary consumer?

• bear
• oak tree
• slug
• squirrel

Which is a benefit of having different types of producers in an ecosystem?

• There is more competition for food by the consumers.
• The ecosystem can support more types of consumers.
• There will be more types of decomposers living in the ecosystem.
• The ecosystem will be better able to support carnivores.

Marco caught a blue crab while he was at the beach with his family.  He wanted to take it home and place it in his pond, but was told the crab would not survive. What is most likely the reason the crab needs the ocean to survive?

• There is more sunlight.
• There are fewer predators.
• The crab needs less oxygen.
• The crab needs saltwater.

In which ecosystem would you likely find both algae and tadpoles?

• pond
• ocean
• tide pool
• coral reef

Which consumers in a grassland ecosystem would be considered both a predator and prey?

• a grasshopper, because it eats grass and is eaten by birds
• a rabbit, because it eats snakes and is eaten by deer
• a snake, because it eats mice and is eaten by hawks
• an earthworm, because it eats dead animals and is eaten by birds