Week 2.8 Ecosystems and symbiotic relationships

Which is a biotic component of the ecosystem?

• water

• oxygen

• temperature

• whale

Which is an abiotic component of the ecosystem?

• tree

• rotten log

• nitrogen

• toad

Tags

NGSS.MS-LS2-3

Which are abiotic factors in an ecosystem?

• water & air

• water & lizards

• air & zebras

• water & lizards

Tags

NGSS.MS-LS2-3

Which of the following is an abiotic factors in an aquatic ecosystem?

• algae

• coral

• water

• fish

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Which of the following is the correct order of the levels of an ecosystem (most specific to broadest)?

• community, population, ecosystem, organism

• organism, community, population, ecosystem

• organism, population, community, ecosystem

• population, organism, community, ecosystem

At which level are abiotic factors introduced?

• organism

• community

• population

• ecosystem

Tags

NGSS.MS-LS2-3

True or False: Only biotic factors are included in the levels - organism, population, & community.

• True

• False

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following describes a population?

• one gazelle

• a group of gazelles

• gazelles and crocodiles

• gazelles, crocodiles, water, & sunlight

Which is the best description of an ecosystem?

• an area with living organisms that contains only abiotic components

• an area with living organisms that contains only biotic components

• an area with living organisms that contains biotic and abiotic components that interact with each other

• an area with living organisms that contains biotic and abiotic components that do not interact with each other

Which of the following interactions best describes an organism interacting with a BIOTIC part of the ecosystem?

• bird flying through the air

• deer drinking water

• plants using sunlight to make their own food

• squirrel using a log as shelter

Tags

NGSS.MS-LS2-2