16 & 17 Test

Question 1

father of evolution

Answer 1

darwin

Question 2

what is needed for natural selection to happen

Answer 2

variation and overpopulation

Question 3

variation

Answer 3

not all the same

Question 4

overpopulation

Answer 4

competing for survival

Question 5

common descent

Answer 5

we all come from the same body plan

Question 6

common ancestor

Answer 6

come from the same relative

Question 7

adaptations

Answer 7

helps an organism survive in its environment

Question 8

fitness

Answer 8

level of how adapted an organism is to its environment

Question 9

artificial selection

Answer 9

humans experiment w organisms to improve them

Question 10

Lamarck

Answer 10

came up w evolution before darwin

had wrong reasonings

Question 11

acquired characteristics

Answer 11

animals would physically change during their life

Question 12

homologous structures

Answer 12

structures of organisms are different but they are still similar

Question 13

vestigial structures

Answer 13

structure that an organism has but is not used

Question 14

embryology

Answer 14

early embryos look the same but grow up differently

Question 15

genetic drift

Answer 15

happens randomly and to small populations

Question 16

bottleneck effect

Answer 16

reduces a population and only a few live to reproduce

Question 17

founder effect

Answer 17

a species breaks off and forms somewhere else

Question 18

forms of evolution

Answer 18

gradualism

punctuated equilibrium

Question 19

gradualism

Answer 19

makes tiny changes over time

Question 20

punctuated equilibrium

Answer 20

stays the same for a while and makes sudden changes

Question 21

adaptive radiation

Answer 21

organisms branch from one species into more

Question 22

co evolution

Answer 22

evolves equally bc they have to

Question 23

convergent evolution

Answer 23

become similar

Question 24

divergent evolution

Answer 24

becomes different

Question 25

directional selection

Answer 25

organisms at the end of the curb have a higher fitness

Question 25

stabilizing selection

Answer 25

organisms at the center have a better fitness

Question 26

disruptive selection

Answer 26

upper and lower part of the curve have a higher fitness