Chapter 1: Evolution Life on Earth Flashcards Preview

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Flashcards in Chapter 1: Evolution Life on Earth Deck (31):
1

smallest unity with the capacity to live and reproduce, independently or as part of a multicellular organism

Cell

2

the branch of science concerned with classification, especially of organisms; systematics

Taxonomy

3

Most inclusive group?

Domain

4

put in order from most to least.
family, phylum, kingdom, class, species, genus, order

kingdom, phylum, class, order, family, genus, species

5

includes all populations of individuals that have very similar structure, biochemistry, and behavior, and can successfully interbreed

species

6

a group of similar species that share recent common ancestry

genus

7

Scientific name.
First part identifies what?
Second part?

genus, a species within that genus

8

Eukarya

Domain

9

Animalia

Kingdom

10

Chordata

Phylum

11

Mammalia

Class

12

Primates

Order

13

Hominidae

Family

14

Homo Sapiens

Species

15

Homo

Genus

16

What did Charles Darwin study?

evolution of finches

17

Example: pigeon breeders who wished to promote a certain characteristic in animal

artificial selection

18

Example: pigeons that find a characteristic that is desirable and breed in nature

natural selection

19

the origin and inheritance of new variations arise from the structure and variability of DNA

genes

20

variability among individuals arises through random changes in the structure, number or arrangement of DNA molecules

mutations

21

favorable mutations may produce characteristics that help an organism survive

adaptations

22

biologists use DNA and other biological molecules to construct this illustration

phylogenetic trees

23

bacteria and archea, dNA in their cells is not separated from other cellular components

prokaryotes

24

the eukarya, dNA is enclosed in a separate structure (nucleus) within the cells

eukaryotes

25

specialized internal compartments within the cell

organelles

26

which domain?
-microscopic unicellular organisms
-found everywhere on earth
-metabolic processes

domain bacteria

27

which domain?
-microscopic unicellular ogranisms
-inhabit extreme environments
-distinctive structural molecules

domain archea

28

which domain?
-actually represent several kingdoms
-includes a variety of unicellular and multicellular organisms such as protozoa and algae

domain eukarya, kingdom protoctista

29

which domain?
-mostly photosythetic multicellular organisms
-producers such as flowering plants, conifers, and mosses

domain eukarya, kingdom plantae

30

which domain?
decomposers that breakdown and absorb biological molecules from dead organisms
-includes yeasts and molds

domain eukarya, kingdom fungi

31

which domain?
-multicellular consumers
-move actively from one place to another during some stage of their life cycles

domain eukarya, kingdom animalia