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Consensus Statement to Answer Lesson Question

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Consensus Statement to Answer Lesson Question

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Claim:

Evidence:

Reasoning:

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Consensus Statement to Answer Lesson Question

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Consensus Statement to Answer Lesson Question

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Claim:

Evidence:

Reasoning:

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Disturbance:  Changes in an ecosystem that happen over a relatively short period of time, and affect the availability of resources to organisms, causing their population numbers to either increase or decrease.

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How changes to the abiotic parts of the ecosystem affect needed resources

How individuals are affected by a change to the abiotic parts of the ecosystem

How populations are affected by a change to the abiotic parts of the ecosystem

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How individual organisms in mutualistic relationships benefit.

How populations of organisms in mutualistic relationships benefit

When two species are interdependent, how are the size of the two populations related.

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Consensus Statement: How does the physical environment affect the population?

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Consensus Statement: How does the physical environment affect the population?

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Claim: The harsher the physical environment the more likely the population will decrease.
Evidence: In Deerlandia, the more snow we had the smaller the deer population.
Reasoning: The harsh physical environment causes organisms to have a hard time getting the resources that they need. Example of Deerlandia was the more snow the harder it was to get grass.

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What happened to the deer population in Deerlandia as the amount of snow changed?

Was there a pattern or trend to what you observed on your graph?

Why do you think these changes occurred in the deer population?

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Initial Prediction: What is the effect on populations of organisms when the physical components of an ecosystem change?

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Initial Prediction: What is the effect on populations of organisms when the physical components of an ecosystem change?

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What is the fox doing?
Searching for mice under the snow
How do you think the physical environment affects what the fox does?
The more snow there is the harder it is to catch mice
How might changes in the physical environment affect the survival of the fox?
The more snow the harder it is to find food and if it is really windy it might be hard to hear the mice so harder to get food

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Mutualism-A relationship between organisms of two species in which each organism benefits from the association.

Interdependence-When two species in a mutualistic relationship rely on each other to survive or to complete their life cycle to the point where both populations are harmed when either of the populations decline.

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How did working together benefit you both?
Without each other we wouldn’t have been able to eat the candy.

Given your constraints, would you have been able to accomplish your task without your partner?
No and if you could have made it work it would have been really hard.

If so, how was it easier with your partner?
The person without hands was able to get fed and the person who was blind was able to get directions to eat also.

Can you think of an example in nature where individuals of a species interact or behave so that each benefit?
Honeyguide finds the honey and honeybadger digs it up and shares with the honey guide. Birds on elephants backs the birds eat the bugs off the elephants and the elephants provide food for bird.

Do organisms of different species ever interact to obtain resources? If so, how does the relationship benefit each species?
Some produce food for the other organism. Other times they help each other get those resources. Both benefit from the interaction.

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Which species were predators and which species were their prey?
Wolf-predator and rabbit-prey
Rabbit is predator and grass is prey
Lynx is predator and hare is prey

What happens when a predator population changes?
If predators go up then prey go down and if predators go down then prey go up

What would happen in the hare and lynx situation if there was a reduction in resources for the hares(e.g. the amount of hare shelter is decreased)?
The hare population would go down and then the lynx population would also go down because they prey on hares as their main food source.

Are these patterns in predator and prey populations consistent? How do you know?
Yes they are because we can see the same pattern when predators go up then prey goes down and when predators goes down then prey go up.

How are these patterns related over time?
They are relatively consistent or the same over time. In the graph of the lynx and hare we see the same pattern about every 5-10 years.

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Predation-The act of killing and eating another organism for food.

Predator-a member of a species that eats other organisms.

Prey-An organism that is eaten by a predator.

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INITIAL PREDICTION-When a population of organism eats another, how can each population as well as the ecosystem change?

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INITIAL PREDICTION-When a population of organism eats another, how can each population as well as the ecosystem change?

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The more an organism has to share resources the more competition they will have. The more competition there is the fewer individuals will thrive and survive and so the population will start to decrease.

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When competition for resources is high, the effect on populations is...because...

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When competition for resources is high, the effect on populations is...because...

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When competition for resources is high, the effect on individuals is...because...

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When competition for resources is high, the effect on individuals is...because...

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When competition for resources is low, the effect on populations is...because...

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When competition for resources is low, the effect on populations is...because...

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When competition for resources is low, the effect on individuals is...because...

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When competition for resources is low, the effect on individuals is...because...

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an interaction between organisms sharing a limited resources (such as food, sunlight, water, and shelter/land) where at least one organism is harmed.

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Compare and contrast your experience "eating" marshmallows with the video of the raven and eagle from the Anchoring Experience.

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Compare and contrast your experience "eating" marshmallows with the video of the raven and eagle from the Anchoring Experience.

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Why were the members of one group more likely to survive than those of the other group?

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Why were the members of one group more likely to survive than those of the other group?

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3/4 of the class got red cups and 1/4 of the class got a gold cup. Students with gold cups were able to get a lot more marshmallows than the red group. Students in the red group rarely thrived and many died.

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Video 1-Raven
Raven stole food from the Eagle and would not have survived/eaten if not for the eagle.

Video 2-Plants
Plants were fighting over the sunlight and those plants who couldn't reach the sunlight first died out.

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Which group would likely have the larger population and why?

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Which group would likely have the larger population and why?

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Gold was more likely to increase because it had more food and thrived more often

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Why were the individuals in one of the groups more likely to survive or thrive?

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Why were the individuals in one of the groups more likely to survive or thrive?

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The group with more marshmallows was more likely to survive

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How might resource availability affect population size in nature?

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How might resource availability affect population size in nature?

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More resources means the populations would thrive more often, the population would increase.

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something that is needed to survive, grow and reproduce.

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Food (nutrients)
Water
Air
Shelter (habitat)

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water
sunlight
soil (nutrient)
carbon dioxide

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a single living organism

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a group of organisms that are similar in physical characteristics and can reproduce.
EX: large mouth bass, whitetail deer, snowshoe hare

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What is the relationship between the wolf and the elk?
The wolf eat the elk as their food source.

How do you think the population of one of these species affects the other?
If the wolf population is high the elk population will be low and if the elk population is high then the wolf population will also be high.

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What evidence did you gather about the relationship between the groups?

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What evidence did you gather about the relationship between the groups?

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Gold group got more marshmallows than red
Gold group had more thriving and surviving than the red group.
Red group more died

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a group of different species that all live in the same area.

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a group of populations of different species living in a specific area

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All organisms need resources to survive such as air (oxygen), food, shelter. Populations are larger and more likely to thrive if they have lots of resources.