Define analogous characteristics using one example to illustrate your answer.

Outline two pieces of evidence that support the endosymbiotic theory for the origin of eukaryotes.

List two anatomical features that define humans as primates.

analogous structure similar in appearance/function but with different evolutionary history e.g. wing of bat and wing of bird;

smaller/70S ribosomes in mitochondria/chloroplasts (as in prokaryotes);

circular DNA in mitochondria/chloroplasts (as in prokaryotes);

mitochondria/chloroplasts have double membrane;

similar size/shape of mitochondria/chloroplasts to prokaryotes;

opposable thumb;

large range of shoulder movement;

good vision / stereoscopic vision / overlapping field view;

large brain relative to body size;

tailless primate;

Y-5 cusps of molars;

Those that knew the correct definition did well.

The main pieces of evidence supporting the endosymbiotic theory for the origin of eukaryotes seen were double membranes and the presence of circular DNA.

The most popular answers here were those of humans having an opposable thumb and stereoscopic vision. Many though only gained one mark point here with the answer of opposable thumb.