Matter & Energy in Ecosystems

What energy-storage molecule is formed during photosynthesis?

• oxygen
• ATP
• sugar
• carbon dioxide

Tags

NGSS.MS-LS1-6

Look at the graph below. What is the dependent variable?

• optimal time
• temperaure
• rate of reaction
• There is no way to answer this based on a graph.

Tags

NGSS.HS-PS1-5

Look at the graph below. What is the independent variable?

• optimal time
• temperaure
• rate of reaction
• There is no way to answer this based on a graph.

Tags

NGSS.HS-PS1-5

How many variables should the scientist manipulate in a controlled scientific investigation?

• 0
• 1
• 2
• 3

Tags

NGSS.MS-PS2-2

Nick is an ecologist interested in populations. While out on a field study of geese, he records in his lab notebook "There are 20 male geese and 10 female geese by the pond." What type of observation did Nick make?

• variable
• quantitative
• qualitative
• prediction

The picture below shows an energy pyramid. What will most likely happen to the foxes and the wolves if the rabbits are removed?

• The foxes will eat more wolves
• The foxes will eat fewer wolves
• There will be more foxes and wolves
• There will be fewer foxes and wolves

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Many desert animals depend on the prickly pear cactus. What role does the prickly pear cactus play in a desert food web?

• It obtains energy from producers
• It returns nutrients to the soil
• It preys upon other organisms
• It provides energy to consumers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

A partial mountain forest food web is shown. Which statement does NOT describe a relationship shown in the food web?

• Elk are prey for mountain lions.
• Mice are herbivores that consume grasses and are preyed on by snakes.
• Owls prey on rabbits and frogs.
• Rabbits consume shrubs and are parasites of grasses.

Tags

NGSS.MS-LS2-2

What is the major source of energy for all things on Earth?

• Producers

• Sun

• Decomposers

• Consumers

A partial mountain forest food web is shown. Which statement below is factual? CHECK ALL THAT APPLY

• Rabbits provide energy to snakes.
• Rabbits provide energy to shrubs.
• Energy flows from predators to prey.
• Energy moves from grasses directly to crickets.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3