Q3. (a) remains of an organism or bone / shell / hard part of an organism / impression 1 further detail eg in rock / from a long time ago – if numbers, greater or equal to hundreds of years allow made of minerals ignore over time ignore fossil are rocks 1 (b) (i) D 1 (ii) B 1 (iii) predation / disease / lack of food / competition / loss of habitat / climate change / catastrophic event or volcanic eruption / flood / – drought / temperature change / weather change / ice age / change in atmosphere ignore effects ignore pollution effects / acid rain allow natural disaster 1 (c) C = thickest / wider ‘widest’ thicker column or more fossils (of type C found) allow biggest / er 1 (d) members of the groups have similar physical structures extra box ticked cancel – 1 [7] Q4. (a) lemur(s) 1 (b) gorilla(s) in either 1 chimpanzee(s) accept chimps 1 (c) (i) (Charles) Darwin accept (Alfred) Wallace if first name given it must be correct 1 (ii) variation in this order
Q3. (a) remains of an organism or bone / shell / hard part of an organism / impression 1 further detail – eg in rock / from a long time ago if numbers, greater or equal to hundreds of years allow made of minerals ignore over time ignore fossil are rocks 1 (b) (i) D 1 (ii) B 1 (iii) predation / disease / lack of food / competition / loss of habitat / climate change / catastrophic event – or volcanic eruption / flood / drought / temperature change / weather change / ice age / change in atmosphere ignore effects ignore pollution effects / acid rain allow natural disaster 1 (c) C = ‘widest’ thickest / wider thicker column or more fossils (of type C found) allow biggest / er 1 (d) members of the groups have similar physical structures extra box ticked – cancel 1 [7] Q4. (a) lemur(s) 1 (b) gorilla(s) in either 1 chimpanzee(s) accept chimps 1 (c) (i) (Charles) Darwin accept (Alfred) Wallace if first name given it must be correct 1 (ii) variation in this order
chapter_15_genetics_and_evolution_exam_pack_-_ms.docx