Ecosystem Dynamics and Human Activity

What color does eutrophication turn bodies of water?

• brown

• pink

• green

• orange

This pic is of a(n).....

• organism

• population

• community

• ecosystem

Tags

NGSS.MS-LS2-2

Which ones would cause an increased population size?

• low death rate

• low birth rate

• lots of food

• large amount of predators

• easy access to water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which ones would cause a decreased population size?

• low death rate

• low birth rate

• high amounts of competition

• large amount of predators

• good nutrition

Tags

NGSS.MS-LS2-4

What type of pollution is this?

• Visual

• Air

• Noise

• Water

Tags

NGSS.MS-ESS3-3

What is deforestation?

• Clearing Earth's forests on a massive scale

• Eating too much vegetables

• Going to a forest and pulling weeds

• Clearing the five trees in my backyard

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is a pioneer species?

• Pioneer means first- so it must be the first thing to grow where nothing has grown before.

• Pioneer means last -it's the last thing in an ecosystem

• Pioneer has to do with covered wagons and traveling west during the 1800s.

Tags

NGSS.MS-LS2-4

After a forest fire, an ecosystem would start regrowth through -

• primary succession

• secondary succession

• climax community

• limiting factors

Tags

NGSS.MS-LS2-4

Which is NOT an example of a human-caused event that can disturb the delicate balance of an ecosystem?

• Deforestation

• Introduction of a non-native species into an ecosystem

• Forest fire started by a careless camper

• Volcanic eruption

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Interrelated changes among the biotic and abiotic

factors in an ecosystem over time

• Ecosystem Dynamics

• Succession

• Deforestation

• Commensalism

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4