What was one other animal, other than the finches, that Darwin observed on the Galapagos Islands?
What is the Galapagos Tortoise?
200
This is when humans control the breeding of plants or animals to favor certain desired features
What is artificial selection?
200
This study shows how organism's embryos have changed over time.
What is embryology?
200
How do fossils form?
Fossils form when layers of sediment cover a dead organism. Minerals in the sediment may seep into the organism and replace its body with stone. A fossil can also form when an organism dies and leaves an imprint of itself in sediment.
200
This is when animals move from one place to another. An example would be monarch butterflies.
What is a migration?
200
This man had the same theory as Darwin, but did not have as much information, so did not get as much recognition.
Who was Alfred Wallace?
300
These are the remains of once living organisms found in layers of rock.
What are fossils?
300
How do scientists use DNA to compare organisms?
The more alike the chemicals are alike between organisms, the more closely they are related.
300
mold, cast, amber
What are some examples of fossils?
300
This is when organisms "radiate" into different environmental niches. An example would be the finches.
What is adaptive radiation?
300
This man was a very famous naturalist who went on a five year journey around the world. He made observations that helped him form a theory about evolution.
Who is Charles Darwin?
400
a branching diagram that shows relationships between species
What is a cladogram?
400
This shows how organism's bodily structures have changed over time.
What is anatomy?
400
dolphins, cats, and humans
What are 3 organisms that have similar limb structures?
400
This is when organisms within a species are separated from the others so long that they form a new species.
What is isolation?
400
These were the birds that Darwin observed while he was on the Galapagos islands. They all had different adaptations to help them survive in their environments. Some had larger beaks to eat bigger seeds while others had smaller beaks to eat smaller seeds.
What are finches?
500
a characteristic that improves an individual's ability to survive and reproduce in a particular environment
What is an adaptation?
500
These show how organisms have evolved and changed over certain periods of time and can be found in sedimentary rock.
What are fossils?
500
How do scientists compare organisms?
They compare features of fossils to determine whether ancient species are related to modern species.
500
This is a change in the structure of a gene. It is usually harmful but in some cases it can be helpful.
What is a mutation?
500
What was Darwin's theory of natural selection?
Natural selection happens when organisms that are well adapted to their environment survive, but less well adapted organisms do not.