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Table 2 Final survey statements

From: Freshman Undergraduate Biology Students’ Difficulties with the Concept of Common Ancestry

Question number Designation Statement
8 N1 Dogs and wolves have a common ancestor
2 N2 Pears and apples have a common ancestor
13 N2.1 Rats and mice have a common ancestor
9 N3 Horse flies and fruit flies have a common ancestor
4 H3 Baboons and humans have a common ancestor
1 N4 Whales and zebras have a common ancestor
7 N4.1 Rats and dogs have a common ancestor
3 N5 Crocodiles and dolphins have a common ancestor
11 H5 Salamanders and humans have a common ancestor
5 N6 Zebras and snails have a common ancestor
10 N6.1 Earthworms and mosquitoes have a common ancestor
12 N7 Tuna fish and pumpkins have a common ancestor
6 H7 Cucumbers and humans have a common ancestor
  1. Statements are listed in order of increasing taxonomic distance. The number indicates the order of the statements in the survey. The designation is used in the figures: N/H indicates non-human or Human, respectively; the first digit indicates the taxonomic distance (1 = different species; 7 = different kingdoms); the last digit, if present, indicates more than one statement at the same level of taxonomic distance