Ecosystems

Noah visited a park that had many oak trees. Which BEST describes the role of an oak tree in its ecosystem? 

• Oak trees can live for a long time. 
• Oak trees have leaves that can change colors. 
• Oak trees have strong branches and trunks. 
• Oak trees are a source of food and shelter for animals. 

Tags

NGSS.MS-LS2-2

Which of the following is a first-level consumer? 

• wolf
• hawk
• carrot
• rabbit

Which of the following is a correct food chain? 

• human->corn->cow
• corn->human->cow
• corn->cow->human
• cow->human->corn

Tags

NGSS.MS-LS2-3

What BEST describes the role of a rabbit in a food chain? 

• carnivore
• decomposer
• herbivore
• producer

Tags

NGSS.MS-LS2-3

Which of these is the MOST likely effect of cutting down large numbers of trees? 

• loss of habitat for animals
• increase in oxygen in the air
• lower pollution levels
• decrease in soil erosion 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

A windstorm knocks down many trees in a national park. Timber companies want to get ride of the fallen trees. How would this MOST likely harm the park ecosystem? 

• reduces risk of fire
• decreases erosion problems
• increase the risk of drought
• removes available nutrients 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

As a habitat with a small pond through a long drought, which of these is MOST likely to happen to many of the fish in the pond? 

• They would adapt to the dry environment.
• They would live on other sources of water. 
• They would move to another habitat. 
• They would be unable to survive. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Nicole was studying different ecosystems. She compared the number of plants living in a forest to those in a desert. Which factor BEST explains why more plants may survive in a forest?

• There is more rain in the forest. 
• There is more oxygen in the forest. 
• There is more sunlight in the forest.
• There is more competition in the forest.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Deer live in forests for shelter. If the forest was cut down, which situation would MOST likely happen?

• The deer would find shelter in a different habitat.
• The deer would wait for the forest to grow back. 
• The deer would move to another forest area. 
• The deer would change the type of foods they eat. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of these is the BEST example of organisms interacting with each other in an ecosystem? 

• a buffalo drinking water
• a bear catching a fish
• a rabbit running across the sand
• a pig rolling in the mud

Tags

NGSS.MS-LS2-2