Food Chain/Energy Pyramid

If the GRASS became diseased, which organisms would also be NEGATIVELY affected?

• Rabbits only

• Rabbits and snakes

• Rabbits, snakes, and hawks

• Rabbits and hawks (snakes benefit)

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If the RABBITS became diseased, which organisms would also be NEGATIVELY affected?

• Grass and hawks

• Grass and snakes

• Grass, snakes, and hawks

• Snakes and hawks

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

If the RABBITS became diseased, which organisms would also be POSITIVELY affected?

• Grass

• Snakes

• Nobody (all hurt)

• Hawks

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What happened after 12 months after the hawk population was MOSTLY killed off?

• Snakes increased, Rabbits decreased, and Grass increased. Then everything balanced back out to almost normal.

• Initially everything was stable, but the snake population killed all the rabbits and then died out themselves.

• Everything went down significantly at first, then the hawks recovered.

• Everything except the grass died off at first, then the rabbits recovered.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What does equilibrium mean?

• Being in balance; staying the same for a long time.

• When a species has a very high population

• Changing gradually over time

• Nearly dieing off before recovering again.

Which organism is a consumer?

• Venus flytrap

• Mushrooms

• Grass

• Algae

Which of the following is not true about predator-prey relationships?

• Predators lower the size of prey populations

• If a prey population grows, the predator population will grow too

• Predators hunt/eat prey.

• If a predator is removed, the prey population will die off.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Why are the lower levels of the energy pyramid bigger than the top levels?

• The bottom is for larger animals.

• The bottom levels don't need as much energy.

• The top levels get energy (eat) the lower levels.

• The top levels have fewer predators for they are smaller.

Tags

NGSS.MS-LS2-3

When is your Writing STAAR?

• Next month (early May)

• Next Tuesday (April 10)

• Next Wednesday (April 11)

• We don't have a Writing STAAR

What is the effect of removing prey from a food chain?

• All predators above them will die or suffer.

• The prey's predator will die or suffer, but everybody else should be fine.

• The prey will always, eventually, come back

• The predators population will grow

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4