Vocabulary
A feature that allows an organism to survive and reproduce in its environment
What is an adaptation?
This must exist in the population in order for natural selection to act
What is genetic variation?
This type of rock is where fossils are found.
What is sedimentary rock?
This defines a species as a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring.
What is the biological species concept?
Where was Charles Darwin from?
What is England?
This word means descent with modification
What is evolution?
Organisms often have more ____________ than will survive.
What is offspring?
The hip bones of a dolphin and the tailbone of a human are examples of what?
Vestigial Structures
This is what we use to date fossils
What is radiometric dating?
What was the name of the boat that Darwin sailed in?
What is The Beagle
A group of organisms that look alike and can reproduce are called this
What is a species?
This is the mechanism for evolution
What is natural selection?
Give an example of a structure that is homologous to a cat’s paw.
Answers vary. Dog’s paw, human arm, bat wing, whale flipper
Type of diagram that shows the relationship of organisms to their ancestors as well as common ancestry.
What is a phylogenetic/evolutionary tree?
What islands did Darwin make is most famous observations?
What are the Galapagos Islands?
The measure of the ability of an organism to survive and produce more offspring relative to other members of the population in a given environment.
What is fitness?
Evolution is a result of the ___________ __________ success of individuals
What is unequal reproductive?
A bat wing, insect wing, and bird wing are examples of this type of evolution
What is convergent evolution?
When species in separate environments (ex: on different continents) originated from a common ancestor, this is an example of what?
What animals did Charles Darwin observe that helped lead him to his theory of evolution- and what did he notice about these animals?
What is either finches beaks or tortoise shells
This type of selection most likely leads to the formation of a new species.
What is disruptive selection?
These are the 5 tenets of natural selection
1. genetic variation
2. variation is heritable
3. more offspring are produced than can survive
4. Some organisms are better able to survive and reproduce due to heritable traits
5. Over time there is an increase in the number of organisms adapted to the environment - desirable traits accumulate, less desirable traits diminish
These are the group of developmental genes that are highly conserved among mammals and evidence for evolution.
What are homeobox genes?
This type of speciation occurs when populations diverge in the same geographic area.
What is sympatric speciation?
When Darwin formed his idea of descent with modification, he did not know about this.
What are genes?