Darwin's Work
Miscellaneous
Evidence for Evolution & Adaptations
How Else Can Populations Change?
Vocabulary
100

This is one of the main animals Darwin study on his voyage to the Galapagos. 

Finches or Tortoises 

100

A population that is not evolving is said to be in ____________________.

What is genetic equilibrium?

100
This type of evidence for evolution shows transitional organisms (i.e. organism between fish and tetrapods).
What are fossils
100
These can be both harmful and beneficial.
What are mutations
100
This is cumulative changes in groups of organisms through time.
What is evolution
200

At Darwin's time, people know the earth was 4.6 ____________ years old. 

billion

200

This theorem is used to see the change in allele frequency over time. 

What is the Hardy-Weinberg Theorem

200
An example of this would be the presence of the humerus in both humans and whales.
What is a homologous structure
200
Peacocks exhibit this type of selection.
What is sexual selection
200
This is a structure that is a reduced form of an ancestral structure; not utilized by the organism
What is a vestigial structure
300

This is the basis for Darwin’s theory of evolution and states that those best suited to an environment will reproduce and those unsuited will eventually die off.

What is natural selection

300

In terms of geneticists, evolution is the change in _________________ frequencies over time. 

What is allele

300
Evidence for evolution includes the fossil record, comparative anatomy, geographic distribution, comparative embryology, and this.
What is comparative biochemistry
300
When this type of selection occurs, the extremes are eliminated and most organisms exhibit the average phenotype.
What is stabilizing selection
300
This is a type of selection in which the two extremes are selected for.
What is disruptive selection
400

At Darwin's time, people were breeding animals to obtain desired characteristics. What is this called?

What is artificial selection

400

In order for a population to become two separate species, the population must be ________________ isolated. 

What is reproductively

400
This is an adaptation in which the offspring of an organism begin to resemble a toxic or poisonous organism because the predator of the organism avoids any organisms that look toxic.
What is mimicry
400
is term describes when two different species are able to interbreed, but produce sterile offspring.
What is postzygotic isolation
400
This is a measurement of the relative contribution an organism makes to the next generation.
What is fitness
500

List two of Darwin’s four basic principles of natural selection.

What are: 1) individuals show variation, 2) variations can be inherited, 3) organisms have more offspring than can live off of the resources, and 4) traits increase reproductive success more likely to be passed down

500

This mechanism for evolution happens just by CHANCE. 

What is genetic drift 
500

This is a structure that is used for the same purpose in two different organisms, but did not arise from the same ancestor.

What is an analogous structure

500
This is the term used to define when a small sample of a larger population settles in a location separated from the rest. Because of this, the diversity of the gene pool is diminished.
What is the founder effect
500
This is the study of the distribution of plants and animals around the world.
What is biogeography
M
e
n
u