Natural Selection (Bio) Flashcards

(44 cards)

1
Q

Evolution can occur on a small scale affecting a single population

A

Microevoultion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Evolution on a large scale affecting changes in species across populations

A

Macroevolution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The process of biological change in population over time that makes descendants genetically different from their ancestors.

A

Evolution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

English Naturalist
Saw that different species of finches/tortoises/etc. lived on different islands and had specific characteristics for that island.
Developed his theory of natural selection to serve as the mechanism for how evolution occurs.

A

Charles Darwin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

organisms with the “better” traits (adaptations) will live and reproduce more than others, causing changes in the population over time by acting on traits that are heartable.

A

Natural Selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

a measure of how well you can survive in your environment

A

Fittest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Fittest based on

A

Overproduction of offspring
Variations
Adaptations
Descent with motivations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

any change in a DNA sequence

A

Mutation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a driving force of evolution.

A

Independent Variation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Organisms more fit for their environments will survive and reproduce more offspring.

A

Natural selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Random change in the frequency of alleles in a population over time.

A

Genetic Drift

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Movement of genes into/out of a population.

A

Gene Flow

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sexual selection is also known as

A

non-random mating

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

(Hardy-Weinberg equilibrium) = when there are NO changes in the allele frequencies in a population over time.

A

Genetic equilibrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Speciation
Extinction
Gradualism
Punctuated equilibrium
Divergent evolution
Convergent evolution
Co-evolution

A

broad patterns of evolution observable in nature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

forming of a new species by evolution from a pre-existing species

A

Speciation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

elimination of a species.

A

Extinction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

occurs when a catastrophic event changes the environment suddenly.

A

Mass extinction

19
Q

Slow, constant changes over a long period of time

20
Q

Bursts of change followed by periods of stability.

A

Punctuated Equilibrium

21
Q

A number of different species arise from one common ancestor.

A

Divergent Evolution

22
Q

a type of divergent evolution occurring on a small scale over a small period of time

A

Adaptive radiation

23
Q

Takes 2 organisms to make offspring

A

Sexual Reprodution

24
Q

Process of binary fission or mitosis where only one parent produces genetically identical off spring

A

Asexual Reproduction

25
When unrelated species evolve similar characteristics because they live in similar environments.
Convergent Evolution
26
Occurs when two populations of organisms form a specialized relationship and thus change in response to each other.
Coevolution
27
“unifying theme of biology” because it ties together evidence and research from many branches
Evolution
28
study of prehistoric life through the fossil record.
Paleontology
29
study of the form of living things.
Morphology/Anatomy
30
study of the georographical distribution of plants and animals
Biogeography
31
study of embryo development.
Embrology
32
study of chemical processes in living things.
Biochemistry
33
preserved remains of organisms (bones, footprints, feces, etc.)
Fossil
34
link ancestral species to their descendants.
Transitional fossils
35
similar structures that suggest evidence of common ancestors
Homologous structures
36
structures with little or no function to an organism.
Vestigual structures
37
similar structures that evolved independently in different organisms due to serving similar purposes.
Analogous structures
38
field of biology that classifies organisms.
Taxonomy
39
prokaryotes; “true” bacteria, like pathogens
Eubacteria
40
2-name naming system, Genus species
Binomial nomenclature
41
prokaryotes in extreme environments
Archaebacteria
42
eukaryotes
Eukarya
43
branching of a family tree
Speciation
44
Two bodily structures, found in different species, have different internal bone structures but serve a similar purpose in each organism, This is the best discretion of
Analogous Structures