4.2.2: Classification And Evolution Flashcards
What is fossil evidence?
Imprints or remains of dead animals and plants in rocks from a long time ago.
Fossils support the theory of natural selection and evolution.
What does the fossil record provide evidence for?
How species have changed over time and how species have evolved.
It reflects the history of life on Earth.
What is molecular evidence?
DNA base sequences, RNA, or amino acid sequences used to examine relatedness of species.
This helps estimate the point in history when two species shared a common ancestor.
How does comparing DNA base sequences help scientists?
It enables them to examine how closely related different species are.
This can reveal evolutionary relationships.
What is Cytochrome C?
A protein found in mitochondria common to many species.
It is often compared to determine evolutionary relationships.
True or False: Darwin’s theory of evolution was widely accepted when first proposed.
False.
It was controversial and went against societal and religious beliefs at the time.
What does the presence of simple organisms in the oldest rocks suggest?
Simple life forms have evolved over time into more complex life forms.
This supports the theory of evolution.
What is the significance of studying the anatomy of organisms from fossils?
It helps understand the changes in species over time.
Anatomical studies provide insight into evolutionary processes.
Fill in the blank: The theory of evolution is supported by _______ evidence.
[fossil, DNA, and molecular]
These types of evidence collectively support evolutionary theory.
