Trophic Cascades

Choose all organisms associated with this trophic cascade.

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which is the keystone species for the jungle ecosystem?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following show indirect effects of one organism to the next?

• Bass to phytoplankton.

• Bass to minnows.

• Minnows to zooplankton.

• Zooplankton to phytoplankton.

Tags

NGSS.MS-LS2-2

Why did the vegetation on the Aleutian islands grow sparse?

• indirect negative impact of the fox population on the seabirds

• direct negative impact of the fox population on the seabirds

• direct positive impact of the seabirds on vegetation

• direct negative impact of the seabirds on the foxes

Which of the following did the rinderpest affect the African savannah both directly and indirectly?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following brought direct negative impacts of the next trophic level?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What did this picture tell James Estes when he dived into the water?

• There were no otters.

• The urchins ate the otters.

• The kelp ate the urchins.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following was affected by the loss of the otters?

• 
• 
• 
• 

What is true about the sea star species?

• it is a keystone species

• it has no real effect on the environment

• it controls the mussel population

• it is found at the top of a trophic cascade

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

Which of the following is/are (a) keystone species?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5