Uploaded by Sunshine Ddeonu

Lesson 3

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Drew Ashlee G. Mari
BSMT1G
FOSSIL RECORD
Transitional fossils
Shows the chronological order of species'
appearance and disappearance.
EXPERIMENTAL EVOLUTION
COMPARATIVE ANATOMY
Similar structures in different species
suggest a common ancestry.
Some creatures have non-functional
features that are signs of evolutionary
remainders.
COMPARATIVE EMBRYOLOGY
Embryos of diverse organisms often
resemble each other in their early stages.
BIOGEOGRAPHY
Due to shared ancestry, similar species
can exist in isolated environments on other
continents.
Investigations carried out in
laboratories to show how organisms
evolve quickly.
SOURCES OF
EVIDENCE FOR
MACROEVOLUTION
CONVERGENT EVOLUTION
Suggests that identical structures can be
created through evolution in response to
related problems.
MOLECULAR EVIDENCE
Comparisons of DNA and protein
sequences show that different animals
share genetic traits.
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