Show:
Crazy Ideas
Change or Die
Survivor!
Some Clues
Patterns
100
The process of how organisms acquire adaptations over time is called this.
What is evolution?
100
This is an inherited trait that helps an organism survive.
What is an adaptation?
100
Results in changes in the inherited characteristics of a population.
What is natural selection?
100
These have different mature forms but develop from the same embryonic tissue.
What are homologous structures?
100
Relative dating is a method of sequencing events in this order.
What is the order they happen?
200
Proposed a hypothesis to explain how living things change over time.
Who is Charles Darwin?
200
Members of each species compete regularly for food and other necessary resources.
What is a the struggle for existence?
200
Living species have descended with changes over time from other species.
What is descent with modification?
200
The appendix in humans or legs in skinks are examples of this.
What are vestigial organs?
200
This is the amount of time it takes for half of the unstable atoms in a sample to decay.
What is a half-life?
300
These two scientists explained that the Earth and it's features have been shaped by geological forces acting over long periods of time.
Who are Hutton and Lyell?
300
fitness
What is the ability of an individual to survive and reproduce in its specific environment?
300
The climate of a certain area is cold, and snow is found on the ground most of the year. Equal numbers of two populations of rabbits are introduced into this climate by a group of scientists. One of the populations is brown and the other is white. Over several generations, this will happen.
What is there will be more white rabbits than brown rabbits?
300
Darwin argued that this provided evidence that living things have been changing over a long period of time.
What is the fossil record?
300
This principle states that the layers of sedimentary rocks that are the “lowest” are the earliest to be deposited.
What is the principle of superposition?
400
Jean-Baptiste Lamarck.
Who proposed that organisms acquired or lost traits during their lifetime by selective use or disuse of organs?
400
A species of snail living in the same population displays differences in shell stripe patterns.
What is genetic variation?
400
What is artificial selection?
400
This picture is comparing these.

What are homologous structures?
400
Explain how relative dating of fossils differs from absolute dating of fossils.
What is
When scientist use relative dating to age fossils they just compare the age of the fossil “relative” to other fossils or the Earth’s layers. They state whether it is younger or older than other fossils or layers?

When scientists use absolute dating to age fossils they determine the estimated time frame or year of the fossil by the radioactive decay of elements.
500
Predicted that the human population will grow faster than the space and food supplies needed to sustain it
Who is Thomas Malthus?
500
This consists of all genes, including all the different alleles, that are present in a population.
What is a gene pool?
500
This is graph is an example of it.
What is disruptive selection?
500
In early stages of development, chickens, turtles and rats look similar, providing this kind of evidence.
What is comparative embryology?
500
Fossils found in the lowest layers of undisturbed rock are not found in upper layers of the same undisturbed rock. Explain what happened to the species found in the lower rock layers and why this might have happened.
What is
The earlier species became extinct.

The changing environments on Earth causing loss of habitat, increased competition, new predators, or catastrophes.

Lack of genetic variation within a species.