classification and evolution

Question 1

name the 3 domains

Answer 1

eukarya
bacteria
archea

Question 2

define classification

Answer 2

process where organisms are sorted into groups

Question 3

define secies

Answer 3

can willingly reproduce to produce fertile offspring

Question 4

why are crossbreeds infertile

Answer 4

have odd N of chromosomes

parents had different

Question 5

name and describe the 5 kingdoms

Answer 5

Animalia

• no chloroplasts
• multicellular
• nucleus + membrane bound organelles

plantae

• have chlorophyll
• multicellular
• photosynthesise
• nucleus + membrane bound organelles

fungi

• absorb nutrients
• no chloroplasts
• uni/multicellular
• nucleus + membrane bound organelles

protoctista

• unicellular
• nucleus + membrane bound organelles

prokaryote

• unicellular
• absorb nutrients
• no nucleus + membrane bound organelles

Question 6

define a homologous structure

Answer 6

structure that appears different in different organisms but have the same underlying structure

Question 7

define divergent evolution

Answer 7

species evolved from common ancestor

Question 8

define analogous structures

Answer 8

same function

different structure/ genetic origin

Question 9

define convergent evolution

Answer 9

unrelated species begin to share traits

similarities evolve because species adapt to similar environments