L.2.3

Examples of some organisms found in a forest ecosystem are shown.  How would energy MOST likely flow between the organisms?

• grasshopper, frog, snake, hawk
• hawk, snake, grasshopper, frog
• snake, grasshopper, frog, hawk
• frog, grasshopper, hawk, snake

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What does a plant need to make sugar through photosynthesis?

• soil, water, and oxygen
• oxygen, sunlight, and soil
• carbon dioxide, sunlight, and soil
• sunlight, water, and carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which BEST describes how earthworms improve soil as they eat dead plant material?

• They make the soil clean.
• They keep disease out of the soil.
• They recycle nutrients into the soil.
• They remove extra water from the soil.

Tags

NGSS.MS-LS2-3

Which of these is the primary source of energy in food webs?

• soil
• sunlight
• producer
• consumer

Tags

NGSS.MS-LS1-6

Greg was studying a forest ecosystem. He placed some of the animals he studied in an energy pyramid.  Based on Greg’s energy pyramid, which organisms contain the MOST energy?

• the wolves
• the weasels
• the beetles
• the trees

Tags

NGSS.MS-LS2-3

Animals depend on plants for many things, including food. What do plants depend on from animals?

• energy for photosynthesis
• pest control
• carbon dioxide
• oxygen

Tags

NGSS.MS-LS2-1

As the hawk population increases in an ecosystem, the deer mouse population will MOST likely decrease as a result of

• decrease in food source
• increase in disease.
• increase in predators.
• decrease in habitat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In this model of a food chain, which organism is a producer?

• raccoon
• mouse
• grasshopper
• grass

Tags

NGSS.MS-LS2-3

The diet of a brown bear includes roots, grasses, berries, nuts, fish, insects, and mammals. Based on this description, in what category is a brown bear?

• carnivore
• herbivore
• omnivore
• decomposer

Which organisms make energy available to all other organisms in a food chain?

• producers
• decomposers
• consumers
• scavengers