unit 7

Question 1

natural selection

Answer 1

orgnisms with best traits will live longer

Question 2

order of dominance

Answer 2

domain
kingdom
phylum
class
order
family
genus
species

Question 3

natural selection

Answer 3

organisms with best traits will live longer and reproduce

Question 4

fitness

Answer 4

the measure of how well a organism can survive in its environment (important for reproducing)

Question 5

microevolution

Answer 5

evolution on a small scale affecting only one population

Question 6

macroevolution

Answer 6

evolution on a large scale changes species across populations

Question 7

adaptation

Answer 7

feature that allows a organism to better survive in its enviroment

Question 8

convergent evolution

Answer 8

2 species develop a lot of the same traits and turn into 1

Question 9

divergent evolution

Answer 9

a species that acquires lots of traits and turns into 2 species

Question 10

genetic varitaion

Answer 10

difference in physical traits or organisms

Question 11

biochemistry

Answer 11

study of chemical process in living things

Question 12

homologous structure

Answer 12

similar structures that suggest evidence of common ancestry

Question 13

analogous structures

Answer 13

similar structures that evolved independently in different organisms due to serving similar purpose

Question 14

vestigial structures

Answer 14

structures with little or no function to an organism could be left over from ancestor similar purpose

Question 15

paleontology

Answer 15

study of prehistoric life through the fossil record

Question 16

binomial homenclature

Answer 16

2- name-naming system- genus species

Question 17

what causes genetic diversity

Answer 17

mutations- change in DNA sequence

Question 18

can organisms evolve and how

Answer 18

yea, though natural selection

Question 19

what does comparing DNA sequences tell us about organisms

Answer 19

how different species are related

Question 20

overproduction of offspring

Answer 20

too many offspring cause limited resources so some will get no food or water

Question 21

variation

Answer 21

different of physical traits of organisms

Question 22

descent with modification

Answer 22

a change on gene frequency over time-traits that come from ancestors but things change and beneficial traits become more common over time