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Laabri

EH: 2.1 (4/15)

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Last updated about 3 years ago
8 Nsɛmmisa

Objective: SWBAT use observations of body structures to make inferences about common ancestors.

Do Now:

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Exit Ticket Review:

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Guided Notes:

Part 1: Observing Species’ Front Limbs Record your careful observations of the zoomed-in illustrations of front limbs for the dire wolf, the fruit bat, and Titanotylopus

Practice:

Exit Ticket:

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2
Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Using careful observation, Describe at least two differences between these two limbs. Start with the hand bones.

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Guided Model:

Yesterday's Exit Ticket:

Identify the descendants in the evoluntionary tree from yesterday's exit ticket.

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Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Record your observations about the front limb of the dire wolf.

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Asemmisa {{asɛmmisaAhyɛnsode}}
4.

What environment do you think would make the front limb of the dire wolf an adaptive trait.

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Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Record your observations about the front limb of the fruit bat.

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Asemmisa {{asɛmmisaAhyɛnsode}}
6.

What environment do you think would make the front limb of the fruit bat an adaptive trait.

Use the text descriptions as well as the images in the Structures Tab to answer the questions below.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

What differences do you see between the animals above?

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Why do you think this bone structure was different for each of the species? Make a hypothesis about the environments of the two species as supporting evidence.

CFS:

  • student describes the relationship between anatomical similarities and differences in animal species

  • student describes the environmental difference between animal species with a common ancestor based on body structures