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Biology 21 Online
bill533:

https://learning.k12.com/content/enforced/520666-COF_ID162892/Banded%20Snails%20PDF%201.pdf?_&d2lSessionVal=HBDqueVqZAirKTrZiu7rLsWN0

bill533:

Use the above PDF document with Tables and Graphs as well as your knowledge of science to answer the questions: Which claim is supported by evidence from Graph 1? A. Snails with brown shells live in all three habitats, but they have a survival advantage in meadow habitats. B. Snails with yellow shells live in all three habitats, but those with banding have a survival advantage in hedge habitats. C. Snails with brown shells and no banding are most often found in meadow habitats. D. Snails with yellow shells and banding are less able to survive in wood habitats. _________________________________________________________ Use your answer from Part A to answer Part B Question 2 (2.5 points) Banded Snails PDF Use Graph 2 and Figure 1 to answer the question. Part A : Which statement best predicts how yellow-banded snails will be affected if the trends shown in Graph 2 continue? A. Yellow-banded snails will migrate from higher elevations to lower elevations. B. Yellow-banded snails will migrate from northern regions to southern regions. C. Yellow-banded snails will become more common in areas that have historically cooler temperatures. D. Yellow-banded snails will be found in a much wider range than the region in which they were historically found. ______________________________________________________ Use Graph 2 and Figure 1 to answer the question. Part A : Which statement best predicts how yellow-banded snails will be affected if the trends shown in Graph 2 continue? A. Yellow-banded snails will migrate from higher elevations to lower elevations. B. Yellow-banded snails will migrate from northern regions to southern regions. C. Yellow-banded snails will become more common in areas that have historically cooler temperatures. D. Yellow-banded snails will be found in a much wider range than the region in which they were historically found. ____________________________________________________________ Part B: Which statement supports your prediction from Part A (The Previous Question)? A. Yellow-banded snails are able to live in all environments, but predation rates were historically higher in certain areas prior to climate change. B. Yellow-banded snails in cooler areas will become extinct because they are unable to adapt to changing conditions. C. Yellow-banded snails will move to areas where there are fewer migratory predators. D. Yellow-banded snails are better suited to live in warmer climates than snails with other-colored shells. ___________________________________________________ As the climate in northern regions changes, the population of snails with darker colored shells will likely decrease because they have higher body temperatures than snails with lighter-colored shells. A. True B. False

SmokeyBrown:

For the first question about graph 1, it seems that there are very few yellow banded snails in wood habitats, so I'd go with D for that

SmokeyBrown:

For the next question, graph 2 seems to show that temperature has been mostly increasing over time. Earlier I think it is mentioned that darker snails prefer northern climates (where it is colder), so I would assume that lighter colored snails prefer warmer climates. I'll let you pick the appropriate answer based on that.

SmokeyBrown:

The next question also ties into yellow snail behaviors. Since we've found that they prefer warmer climates, I'm sure you know which answer is correct.

SmokeyBrown:

I'm a little conflicted about the last True/False question. While I agree with the conclusion that the dark snail population will decrease, I'm not certain if the reason given (they have higher body temperatures) is correct.

bill533:

2. is it A 3. D

SmokeyBrown:

For 2, I think C would be a better fit. The yellow snail population would be able to spread to places that they hadn't before due to warmer temperatures. I'd agree with you that D seems like the best answer for question 3

bill533:

Correct thank you smoke

SmokeyBrown:

It's all good

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