The subtopic in the middle and four tasks round it: label a diagram, complete two tables and fill 9 gaps. Every box rests on a learning objective of the topic in the AP Biology course and exam description. Type into the blanks and check them, or print it on A4, Letter or A3 with an answer key.
Paper
Each subtopic on a landscape page, as shuffled and chosen on screen.
Topic 7.6
Evidence of Evolution
AP Biology ยท Unit 7 Natural Selection
Hover over a box to see it. Untick it to leave it off this sheet and its printout.
Name
7.6.AKinds of evidence
Evidence
What it shows
a record of earlier forms, and of change over time
Comparative anatomy
homologous structures show shared ancestry; vestigial structures, such as whale pelvis bones, are leftovers
Embryology
embryos of vertebrates resemble each other early on, including pharyngeal pouches
Molecular data
the more recently two species shared an ancestor, the more their DNA and proteins
Biogeography
related species are found near each other, and island species resemble those on the nearest mainland
7.6.BCytochrome c differences from humans
Species
Amino acid differences
Closeness
Chimpanzee
0
closest
Rhesus monkey
1
Dog
10
more distant
Yeast
44
The more differences, the longer ago the lineages separated: DNA and protein sequences give an independent check on the pattern from anatomy.
Topic 7.6Evidence of Evolution
7.6.A, 7.6.BHomologous limb bones
1234
1
2
3
4
7.6.ASame plan or same job?
Structures with the same basic plan because they came from a common ancestor are , even if their functions differ, as with a bat's wing and a whale's flipper. Structures with similar functions but different ancestry, such as the wings of a bat and an insect, are analogous. They arise by convergent evolution, in which similar environments select for similar solutions.
Word bankcarpalsFossilshomologoushumerusmost distantphalangesradiussimilarvery close
Answer key
Every box on the sheet with its gaps filled in, as the subtopic reads in full.
LabelHomologous limb bones
humerus
radius
carpals
phalanges
TableKinds of evidence
Evidence
What it shows
Fossils
a record of earlier forms, and of change over time
Comparative anatomy
homologous structures show shared ancestry; vestigial structures, such as whale pelvis bones, are leftovers
Embryology
embryos of vertebrates resemble each other early on, including pharyngeal pouches
Molecular data
the more recently two species shared an ancestor, the more similar their DNA and proteins
Biogeography
related species are found near each other, and island species resemble those on the nearest mainland
GapsSame plan or same job?
Structures with the same basic plan because they came from a common ancestor are homologous, even if their functions differ, as with a bat's wing and a whale's flipper. Structures with similar functions but different ancestry, such as the wings of a bat and an insect, are analogous. They arise by convergent evolution, in which similar environments select for similar solutions.
TableCytochrome c differences from humans
Species
Amino acid differences
Closeness
Chimpanzee
0
closest
Rhesus monkey
1
very close
Dog
10
more distant
Yeast
44
most distant
The more differences, the longer ago the lineages separated: DNA and protein sequences give an independent check on the pattern from anatomy.
Biology by Bradford