In the process of ______ individuals that survive are able to breed and pass their genetic information to the next generation.
What is natural selection?
100
A concept that has been tested and confirmed in many different ways and can be used by scientists to make predictions about the natural world is a ________.
What is a theory?
100
A _______ is a change in the base sequence of a DNA molecule.
What is a mutation?
100
The structure of any organism is...
The result of its species entire evolutionary history
100
Changes in species are often related to...
Environmental Change
200
As natural selection takes its course, it slowly weeds out...
What are unfavorable traits?
200
The process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth is _____
What is evolution?
200
An organism can end up with genes that differ from its parents due to ________, the routine sorting and recombination of genes that occurs during sexual reproduction.
What is genetic shuffling?
200
Similar _____ structure in separate animals is an example of evolution
Bone
200
Rapid environmental change often leads to...
Rapid change in a species.
300
The driving force behind evolution is the interaction between
What are organisms and their environments?
300
The _______ is a collection of fossils that provides clues to the history of Earths organisms.
What is the fossil record?
300
True or False: When mutations occur in body cells, they affect only that individual.
What is true?
300
_________ or __________ changes affect how an organism works.
Molecular or Biochemical
300
Species with short reproductive cycles that produce many offspring tend to evolve...
Quickly
400
Overpopulation leads to...
What is competition?
400
The billion of years of Earth's history are known as...
Geological time!
400
Nearly all mutations are (harmful/beneficial)
What is harmful?
400
Changes in DNA often lead to....
Functional Changes
400
Extinction is...
The disappearance of an entire species
500
Any trait that helps an organism survive and reproduce under a given set of environmental conditions is said to have ________.
What is adaptive value?
500
True or false: Evolution does have to produce long term progress in any set direction.
What is false?
500
True or false: Genetic shuffling is the main source of the variation that exists.
What is true?
500
The variation of organisms within a species increases...
The likelihood that some of the members of the species will survive through environmental change.
500
The fossil record shows that throughout geologic time, millions of species have a._______, b.________ for a while, then failed to c.______ successfully, and finally became d.______