Food Chains Food Webs Ecosystems

All energy transformations in an ecosystem begin with

• a scavenger
• the sun
• a decomposer
• a herbivore

a deer population has significantly increased, the best hypothesis is 

• the deer's main predator has been eliminated
• competition increased
• decreased water levels of local ponds
• organisms that rely on similar food sources migrated to the area

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which event is the best example of competition between species in a pond?

• dragonflies landing on lily pads
• lizards and snakes lying in the sun
• hawks eating mice
• frogs and toads eating flies

Which relationship describes predator/prey

• hawks and shrubs
• mountain lion and deer
• frogs and trees
• grasses and crickets

Tags

NGSS.MS-LS2-2

an organism that can produce its own food through photosynthesis

• consumer
• heterotroph
• autotroph
• herbivore

Tags

NGSS.MS-LS1-6

Biodiversity is 

• the variety of species within an ecosystem
• a large number of the same species in an ecosystem
• an abundant amount of the same primary consumers 
• the ability to have an abundant source from the same species

Tags

NGSS.MS-LS2-5

an example of producer consumer relationship would be

• lion eating a deer
• grasshopper getting energy from grass
• hawk getting energy from snakes
• earthworm breaking down dead material

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which of these is an example of an autotroph?

• Sunflower
• Krill
• Leopard
• Hummingbird

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Consumer that eats plants

• heterotroph
• herbivore
• producer
• community

Energy increases as you move up the food pyramid (from bottom to top).

• True 
• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3