Unit 4 Review Flashcards Preview

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Flashcards in Unit 4 Review Deck (40):
1

The name of Darwin's work

On the Origin of Species

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2

Lamarck's theory of evolution

Organisms evolve based on the use and disuse of organs. They are able to pass acquired traits to their offspring.

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3

Structures with different functions but common origins

anatomical homology Ex. whale flipper and bat wing

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4

Structure that may have been used by an ancestor but no longer has a function

vestigial structure Ex. whale pelvis, human appendix

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5

When the average form of a trait has the highest fitness

stabilizing selection

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6

Consists of all the genes including all different alleles in a population

gene pool

7

What determines if a new mutation becomes common or disappears?

whether or not the mutation increases the organism's fitness in the environment

8

The name of the super continent

Pangaea

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9

Kingdom of eukaryotic organisms that are multicellular, mobile and heterotrophic

animalia

10

What distinguishes a protist from a bacterium?

Protists have nuclei.

11

Levels of classification from most general to most specific

(domain) kingdom, phylum, class, order, family, genus, species

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12

Drastic changes create new species followed by little change

punctuated equilibrium

13

When one end of the bell curve (one extreme) has the highest fitness

directional selection

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14

Causes random change in allele frequencies

genetic drift

15

Populations are separated by time of breeding/pollination

temporal isolation

16

Evolutionary innovations that separate groups in a cladogram

derived characters

17

Species are created at a constant rate

gradualism

18

Kingdom of eukaryotic, multicellular, nonmobile and autotrophic organisms

plantae

19

Which taxon contains organisms that are the most closely related?

species

20

Kingdom of prokaryotic unicellular organisms with peptodoglycan in their cell walls

eubacteria

21

When both ends of the bell curve have high fitness

diversifying selection

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22

Another name for survival of the fittest

natural selection

23

Populations are separated by different behaviors or mating rituals

behavioral isolation

24

Requirement for the formation of a new species

reproductive isolation

25

Natural selection works on _____.

populations

26

Populations are separated by physical barriers such as a mountain or river

geographic isolation

27

Formation of a new species

speciation

28

Diagram that shows the evolutionary relationships among a group of organisms

cladogram

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29

Kingdom of eukaryotic nonmobile heterotrophs

fungi

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30

Kingdom of prokaryotes that live in extreme environments

archaebacteria

31

Kingdom that would contain a unicellular eukaryote

protista

32

Which rock layer is on the top of a formation? Oldest or youngest?

youngest

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33

One species becomes many species

adaptive radiation Ex. Darwin's finches

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34

Classification of organisms

taxonomy

35

Anatomical, molecular and developmental homologies all point to a _____.

common ancestor

36

What type of selection is demonstrated in this graph?

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directional selection

37

What type of selection is demonstrated in this graph?

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stabilizing selection

38

What type of selection is demonstrated in this graph?

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diversifying selection

39

Which two kingdoms contain only heterotrophs?

animalia and fungi

40

Which two kingdoms have organisms that lack a nucleus?

eubacteria and archarbacteria

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