The five main characteristics are foot region, hard exoskeleton, bilateral symmetry, left and right limbs and a segmented body.
First eliminate choices C and D since they both mention that fact 1 is crossing over ( which is also referred to as genetic recombination) . So you're left with A and B and the correct answer is B .
Birds have inspired flight and horses of inspired locomotis and cars yet none of today’s transportation vehicles for symbol medal skeletons of living breathing self replicating animals. However they do succeed in lifting of the ground in the same function as a bird, as well as the landing.
