Ecological Roles

What is the original source of energy for MOST ecosystems?

• producer

• sun

• decomposer

• matter

Tags

NGSS.MS-LS1-6

In this food web, what is the source of energy for the goat?

• jackal

• sun

• green plant

• rabbit

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The Great Horned Owl is protected by law in many states due to its extremely low and declining population size. The law prevents development in areas identified as "crucial habitat" for the Great Horned Owl, including many old-growth forests. Predict the impact on this ecosystem if this law were removed or no longer enforced.

• The population of Great Horned Owls would decrease.

• The population of weasels would increase.

• The population of red fox would increase.

• All options are possible.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What happens to the other 90%?

• lost as heat

• used by the organism in digestion/metabolism

• not consumed (bones, fur, etc)

• all are correct

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Wasps often lay their eggs just inside the eggs of butterflies. The wasp larva (baby wasps) are able to get lots of nutrients and protection from the butterfly/caterpillar egg while its developing. After the caterpillar is born, the wasps continue lurking in the flesh of the caterpillar, soaking up more nutrients and drinking its blood. The wasp larva must keep its host alive, so it avoids damaging the vital organs.

What type of symbiosis is being described?

• predator/prey

• competition

• commensalism

• parasitism

All 3 are examples of...

• mutualism

• commensalism

• parasitism

• cooperation

Tags

NGSS.MS-LS2-2

If you had to guess, what symbiotic relationship do you think is being shown here?

• intraspecific competition

• predator/prey

• inter-specific competition

• mutualsim

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which organism in this ecosystem is an herbivore?

• weasel

• frog

• goldfinch

• all are herbivores

What percent (%) of energy found in each organism is successfully passed on to each trophic level?

• 100%

• 10%

• 50%

• 0%

Tags

NGSS.MS-LS2-3

Saprotrophs are also known as

• producers

• consumers

• detritivores

• decomposers