Where's the evidence?
It's only natural
Theoretically
Random
100
A trace of an ancient organism that has been preserved in rock
What is a Fossil?
100
A structure on an organism that no longer serves a purpose is called a _______ _______.
Vestigial structure
100
He is considered the father of evolution?
Who is Charles Darwin?
100
Scientists compare this molecule to find out how closely related two species are.
What is DNA?
200
Which of these is oldest organism?
What is E?
200
A trait that helps an organism survive and reproduce
What is an adaptation?
200
A gradual change in a species over time
What is evolution?
200
When bacteria survive antibiotics and pass that resistance on to future generations, this is an example of this kind of evolution.
What is microevolution?
300
Similar bone structures that serve different purposes (for example, whale fins and human arms) are called _______ _______.
Homologous structures
300
The source of variation within a species
What is mutation?
300
What does the fossil record show us about evolution?
(Hint: time)
It happened slowly over a long period of time
300
Charles Darwin observed that finches on the Galápagos Islands had different shaped ones of these, depending on their food source.
What are beaks?
400
Structures in different species that are similar because of common ancestry.
What are homologous structures?
400
This occurs when an environment changes and an organism with certain traits is more likely to survive and reproduce.
What is natural selection?
400
Organisms may have adaptations that allow them to be better suited to the environment. These traits are not acquired in their lifetime, but they are __________________.
What are inherited?
400
When people breed dogs or crops to produce certain traits, it’s an example of this kind of selection.
What is artificial selection?
500
Species that have similar embryos despite looking very different once fully grown indicates that these species share a _______ _______.
Common ancestor
500
The process of forming a new species due to evolving separately is called _________
Speciation
500
According to Darwin, what organisms will survive survive?
(note: not asking for a specific species/organisms)
What is the organism most adapted to their environment
500
This field of science studies fossils to learn about ancient life and how organisms have changed over time.
What is paleontology?