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Flashcards in Chapter 5 Deck (10):
1

Niche

Position or role within a community or ecosystem

2

Homologous structures

-Pentadactyl limb in humans, bats, whales
-Evidence of common ancestry
-Suggest reason other than function, swimming efficiency not improved by 5 fingers

3

Speciation

An evolving population changing significantly enough so that production of offspring with the original population becomes impossible

4

Transient polymorphism

Temporary changes in the form of a species

5

Peppered moths and the industrial revolution

Soot+ chemicals: no lichens, soot darkened branches
- near industrial centers, carbonaria moths 95-100% peppered moths
- today 0-30% clear air act

6

Variation re: natural selection

1. Sexual reproduction
2 meiosis
3 mutation
--> a change in the environment will eliminate some not all of the population

7

Antibiotic resistance in bacteria

Mutations and plasmid transfer allow genetic variation of bacteria
- use of antibiotics can lead to resistance strains of bacteria: these survive and colonies people's bodies

8

Dating fossils

Looking at the ratio of parent isotope (14C, 40K) to stable daughter isotope (-4N) as It takes 1 half life for 1-/2 patent

9

Reptiles

Produce a

10

Principal taxa for eukaryotes

Kingdom
Phylum
Class
Order
Family
Genus
Species