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OPSC Whales and Wolves Comparison

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Last updated over 1 year ago
22 questions
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Question 1
1.

In which museum exhibit do you think the mystery fossil belongs?

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Question 2
2.

State one thing you notice about the backbone in whales and wolves.

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Question 3
3.

Having a backbone is

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Question 4
4.

Look at cards B and I. Are both whales and wolves mammals?

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Question 5
5.

Examine the skull shape (cards C and F). State ONE thing you notice about the shape of the skulls.

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Question 6
6.

The shape of the skull is

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Question 7
7.

Look at cards E and G (Teeth). State ONE notice about the teeth in whales and wolves.

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Question 8
8.

According to card E, what are the teeth in whales adapated for eating?

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Question 9
9.

According to card G, what are the teeth in wolves are adapated for eating?

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Question 11
11.

Look at cards J and H (Nostrils). State ONE notice about the nostrils.

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Question 13
13.

The location of the nostril is

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Scientists use what are known as diagnostic structures and DNA to determine how related two organisms are. Diagnostic means something that can be used for identification or classification.

The more diagnostic structures shared between two organisms, the more closely related they are, and they have a recent common ancestor. The fewer diagnostic structures shared between two organisms, the further their relation and the more distanct the common ancestor.
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Question 19
19.

Look at the mystery fossils teeth. The teeth are

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Question 21
21.

Compare the skull shape of the mystery fossil to cards C and F. The skull of the mystery fossil is similar to

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Question 22
22.

After analyzing the Mystery Fossil's structure and comparing them to the structures of whales and wolves, which claim do you think is more stronlgy supported by the evidence?

Question 10
10.

The shape and spacing of teeth are

Question 12
12.

Look at the cards J and H (nostrils). In what animal has the placement of the nostrils has gradually evolved to the top of the skull?

Question 14
14.

Examine the images of the Orca Whale and Gray Wolf skeleton. What structures are DIFFERENT in the whale and wolf. Click on all the structures.

Question 15
15.

Scientists determine how closely related two animals are by comparing diagnostic structures and

Question 16
16.

Look at the mystery fossils nostril. Where is the nostril located?

Question 17
17.

Looking back to cards J and H, the nostril of the mystery fossil is more similar to

Question 18
18.

How would you describe the skull shape of the mystery fossil?

Question 20
20.

Looking back at cards E and G, the teeth shape of the mystery fossil is simalar to