B10 - classification

Question 1

taxonomy

Answer 1

physical similarities between different species

Question 2

phylogeny

Answer 2

evolutionary relationship - groups share common ancestor

Question 3

species

Answer 3

group of similar organisms that interbreed to produce fertile offspring

Question 4

why classify organisms?

Answer 4

• easier to identify species
• find evolutionary links
• predict characteristics

Question 5

comparative anatomy

Answer 5

analogous structure: Different underlying structure but adapt to similar environment
convergent evolution = very distant organisms become more similar

homologous structure:
Same underlying structure but different function e.g. vertebrate limbs
divergent evolution = species evolve from common ancestor and adapt to new habitats