A trace of an ancient organism that has been preserved in rock
What is a Fossil?
One extreme trait is favored
What is directional selection
He is considered the father of evolution?
Who is Charles Darwin?
Give 2 examples of Trace Fossils
what are coprolites and tracks
Which of these is oldest organism?
What is E?
A trait that helps an organism survive and reproduce
What is an adaptation?
A gradual change in a species over time
What is evolution?
selects against the average phenotypes in favor of extreme phenotypes
What is Disruptive Selection
Which one of these animals is most closely related to a dinosaur?
What is bird?
Which population will increase in this environment?
What is a brown?
Birds and reptiles have similar traits and DNA, they most likely share ______________________.
What is a common ancestor?
What does the fossil record show us about evolution?
(Hint: time)
It happened slowly over a long period of time
Structures in different species that are similar because of common ancestry.
What are homologous structures?
This occurs when an environment changes and an organism with certain traits is more likely to survive and reproduce.
What is natural selection?
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?
Causes some genes to be removed from a population because of a sharp decline in the population due to a natural disaster
Double Jeopardy
What is Bottle-Neck effect
what type of selection is this
What is stabilizing selection?
The source of variation within a species
What is mutation and sexual reproduction?
According to Darwin, what species will not survive?
Double Jeopardy!!
What is the species least adapted to their environment
Some scientists theorize that life originated.........
What is the bottom or surface of the ocean