Show:
Evolution
Natural Selection
Adaptations
Evidence for Evolution
Miscellaneous
100

A diagram that shows the evolutionary relationships among different species.

What is a cladogram?

100
The survival and reproduction of the organisms that are genetically best fit for their environment
What is the definition of Natural Selection?
100

A trait found in the line of descent but not in the common ancestor.

What is a derived character?

100
The hip bones of a dolphin and the tailbone of a human
What are Vestigial Structures?
100

Structures with the same evolutionary origin, but different functions.

What are homologous structures?

200
A theory (explanation) supported by evidence for how populations change over time
What is evolution?
200

The variety of dog and cat breeds that we have today is a product of _________ _____________.

What is Artificial Selection?

200
A variation in an organism that helps it survive
What is Adaptation?
200
An example of a structure that is homologous to a cat’s paw.
What is a Dog’s paw, human arm, bat wing, whale flipper
200

These structures have similar functions but evolved independently in species with different ancestors

What are analogous structures?

300

Groups of organisms in a cladogram.

What are clades?

300
The name of the islands where Darwin studied and gathered his evidence on Natural Selection
What are The Galapagos Islands?
300
An organism matches its surroundings in order to hide
What is Camouflage?
300
Body parts that share a common function but have a different structure
What is an analogous structure?
300

A group of organisms that look alike and can reproduce

What is a species?

400

Evolution can only occur if this is involved

What is Genetic Variety?

400

The idea that only those organisms best suited to their environment will survive.

What is survival of the fittest?

400
An organism imitates an animal
What is Mimicry?
400

A trait that many organisms in a family or lineage share because they inherited it

What an ancestral character?

400

This type of natural selection occurs when certain traits increase an individual's chances of attracting a mate, even if they don’t help with survival.

What is sexual selection?

500

Two different organisms are alike, they share this in their bloodline

What is a Common Ancestor?

500

A little child catches a fly and pulls its wings off. The fly actually lives a better life, but does not pass its lack of wings on to its offspring because the loss of wings is an _________ _______.

What is an Acquired Trait?

500

This type of adaptation includes traits like a camel’s hump or an eagle’s talons that help an animal survive in its environment.

What is an example of Physical Adaptation?

500

Scientists use this branch of biology to compare the early development of different species and find evidence of common ancestry.

What is comparative embryology?

500

Similarities in DNA sequences among different species used to determine shared ancestry.

What is molecular biology?