Imate population of lynx in 1865?

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Number of Hares
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What does the Y axis on the left represent?
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Number of Lynx
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What does the Y axis on the right represent?
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x10 to the 3rd power
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For both Y axes, what value do the numbers on the axes need to be multiplied by?
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160 Hares
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What was the approximate population of snowshoe hares in 1865?
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60 Lynx's or 57 to be exact
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What was the approxoimate population of lynx in 1865?
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After 1865 the number of Snowshoe hares increase and decreasing with the Lynx so both are on the same path
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When the number of snowshoe hares is high, what happens to the number of lynxes? Use actual data from the graph to support your observations.
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When the predators start dying out that means their food source is running out as well.
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What happens to the population of Lynx as the number of Snowshoe Hares decreases? Use actual data from the graph to support your observation.
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Since Lynx's are carnivores their food source easiest to get. It only resorts to a Preditor - Prey relationship.
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Propose an explanation for the apparent cause and effect relationship between the populations of Lynx and Hares.
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They rely on eachother for survival.
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What does this information tell you about the effect of the size of prey populations on the number of predators?
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Their survial depends on their prey.
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What does this information tell you about the effect of predators on the populations of their prey?
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Disease, weather, food, water, environment and oxygen
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What other factors would influence the size of the hare population in addition to the size of the population of Lynx.
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Paraitism
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-Model 2 - Symbiosis- Dog & Flea
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Mutalism
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Fungus & Algea
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Mutalism
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Termite & Cellulose-Digesting bacteria
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Commensalism
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Shark & Remora
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Commensalism
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Cattle & Cattle Egret
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Paraitism
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Human & Tapeworm
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Only beneifits 1 organism
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In the Dog and Flea relationship, is there a benefit for one of the organisms or for both?
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The Dog is harmed by this realtionship
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Is either the Dog or the Flea harmed by this realtionship?
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The Human & TapeWorm
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Which is another relationship in Model 2 similar to that between the dog and flea?
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Both benefit
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-Refer to the Fungus & Algae relationship in Model 2- Is there a benefit for one of the organisms or for both?
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Non are harmed
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Is either the Fungus or the Algae harmed by this relationship?
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Termite & Cellulouse - digesting bacteria
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Which is other relationship in Model 2 similar to that between the Fungus and the Algae?
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Only benefits 1 organism
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In the Shark and Remora relationship, is there a beneift for one of the organism or for both?
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None are harmed
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Is either the Shark or the Remora harmed by this relationship?
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Cattle & Cattle Egret
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Which other relationship in Model 2 is similar to that between the Shark and the Remora?
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The one we choose was the Dog & Flea. The reason why we choose Parasitism for it was because parasitism means one organism benefits and the other is harmed. The Dog gets infections & rashes from the Flea, while the Flea gets what it needs, so in the end, the Dog is getting harmed in the process.
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With your group, choose one of the organism pairs from Model 2 and justify why you categorized the relationship as you did.
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In Model A & B: P.aurelia and P.caudatum
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-Model 3 - Inter- and Intra-Specific Competition- What are the names of the species in graph A & B in Model 3?
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Graph 8
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Which graph shows competiton between two different species?
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Graph C
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Which graph in Model 3 shows population growth for only one species?
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Graph A is separately grown & Graph B is grown together.
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What is the difference between the growing conditionss in graph A and graph B?
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P.aurelia grows larger in 20 days
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P.caudatum and P.aurelia are both species of Paramecium, a microscopic protozoan. P.caudatum is the larger of the two species. When grown separately, which of the two species reaches a larger realtive population size after 20 days?
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They would both increase because they are not fighting w/eachother.
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When grown separately is there a substantial diffrence in the relative population size of the two types of paramecia after 20 days?
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P.caudatum is affected when grown together
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Which population of species of Paramecium is more affected when the two species are grown together?
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When two organisms are together they compete with each other to get the resources to survive - ( just like the hunger games ;)
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Considering that P.caudatum is 50% larger in size than P.aurelia, developed a hypothesis with your group to explain why interspecific competiton has an effect on the relative population size of P.caudatum.
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Ex.) Plants of the same species that receive nitrogen and water from the same resource pool. For example individual grass plants in a lawn, they use Interspecific competition.
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In a grammatically correct sentence, define interspecific competition.
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They are Tigrina tadpoles.
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-Refer to graph C in Model 3- Describe the species of organism represented by the graph.
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So they can become the dominant tadpole and get all the resouces to survive.
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These Tadpoles are confined to a limited environment. That are they all cometring for in that environment?
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0.89 to be exact
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What is the minimum mean body mass required for the metamorphosis of a tadpole to occur?
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2 weeks
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When there are only five tadpoles, how long does it take for the metamorphosis of a tadpole to occur?
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6 weeks
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When the number of individuals is increased to 60, what is the effect on the time is taken for metamorphosis to occur?
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8.5 weeks beacuse it extends even more.
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When the number of individuals is increased to 160, what is the effect on the time taken for metamorphosis to occur?
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Because there is less resources (interspecific Competition) the more organism there are (same species) the more resourse decline
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Propose an explanation for why the population size affects the number of weeks before metamorphosis of the tadpoles occur.
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Weeks & days are differenent
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The type of competition represented by graph C is referred to as intraspecific competition. What is difrrent about this compared to the competiton seen in graph B?
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