fossils
the fossil record is...
collection of every known fossil
The scientist who studied finches of the Galápagos Islands to support his theory of natural selection.
Charles Darwin
parts of the body that look similar but have different jobs.
Homologous structures
different species show...
similar development patterns
All living organisms have this molecule...
DNA
The age of fossils is determined by....
depth
This continent has the most marsupials.
Australia
A human arm, a cat leg, and a whale flipper all have this in common.
The same bones
Embryos start to look different...
later in development
All living organisms have this type of information...
genetic code
what determines the age of fossils?
carbon dating
a species that only lives in one place
endemic
structures with different structures but similar functions...
analogous structures
fish, birds, and humans all have these in the early stages of development...
gill slits
Species that are more closely related have closer...
biochemistry
carbon dating works by...
Measuring how much Carbon-14 is left within organic material
Why do animals on islands look like nearby mainland animals?
they share a common ancestor.
structures that have become outdated and lost their original purpose because of evolution...
vestigal structures
what does it mean if an embryo looks alike?
they share a common ancestor.
The more similar two species’ DNA is, the more likely they have a...
common ancestor
The carbon dating equation is...
t = (ln(N/N₀) / -0.693) * t₁/₂.
Name the biogeographical pattern that explains why some unrelated animals on different continents look alike, due to similar environments, not shared ancestry.
convergent evolution
Snakes have this vestigial structure...
small femurs
19th-century scientist who drew embryos to show they look similar
Ernst Haeckel
Name the technique scientists use to compare DNA or protein sequences between species to build evolutionary trees.
What is molecular phylogenetics?