Ecosystem Graphs

What is happening on this graph from the year 1825 to the year 1850?

• the population is leveling out

• the population has reached its carrying capacity

• the population is increasing rapidly (exponentially)

• the population is decreasing.

Tags

NGSS.MS-LS2-4

What could be a reason for the decline in this population at year 4?

• An increase in the amount of its predators

• A disease in the population

• A natural disaster

• All of these

Tags

NGSS.MS-LS2-4

What would you predict the whale population to be in 2017?

• over 200

• around 0

• between 75-100

• between 150-200

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What could have caused the population to decrease after the year 1850?

• The population reached the maximum amount that the limiting factors could support.

• more immigration than usual

• more rainfall

• more producers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What can you conclude when these 2 populations (aurelia and caudatum) are grown together in the same petri dish?

• caudatum outcompetes aurelia

• aurelia outcompetes caudatum

• neither outcompetes the other

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

In the year 1900, the lynx population was very low. What could have caused this?

• The hare population increased.

• The producers increased

• Their prey population, the hare, decreased because the lynx ate a lot of them just before that year.

• none of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Who does the bird compete with for food?

• owl

• fox

• grasses

• carrots

Tags

NGSS.MS-LS2-1