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WorksheetsUnit 9a: Proof of Evolution
Total questions: 14
Worksheet time: 12mins
Comparative ancestry looks at the structures of...
current and fossilized organisms
DNA and amino acids
layers of the Earth
continental drift
Where are the oldest fossils found?
at the bottom
at the top
in the middle
This element decays at a predictable rate that helps us date fossils.
carbon-14
Geological Strata
nitrogen 14
carbon-4
Fossils for the same organism have been found on multiple continents.
This shows that...
Fossils can swim the oceans
the Earth has changed a lot over time
The Earth is flat
A long time ago, there were no oceans
This bat and moth have structures that evolved separately.
Click on ALL of their analogous structures.
Which of the following is an example of a vestigial structure of a HUMAN?
Femur
tail bone
Brain
Finger
similar physical features in organisms that share a common ancestor are called...
homologous structures
eyes and ears
analogous structures
vestigial structures
What type of evidence is shown with the diagram above?
Molecular
Anatomical
Embryological
Fossil
Match the following
embryo
vestigial structures
analogous structures
homologous structures
geological Strata
If two organisms have DNA or amino acids that are very similar, this indicates that they are closely related.
Order the following organisms from the most closely related to humans to the least.
This image is an example of...
an embryo
natural selection
a cladogram
evolution
Click on the species that is considered the out group of these animals.
Click the circle on this image where we'll find the most common ancestor of a human and a parrot.
