Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and early reptiles, but do not have similar mammal populations. These findingsQuestion 11 options:cast serious doubts upon the theory of continental drift and fused land masses. are an unsolved puzzle probably due to the random nature of biological evolution. suggest that a pattern of land bridges existed at different times in geological history. suggest that the earlier plants and reptiles evolved while continents were joined, but mammals radiated into diverse groups after separation. suggest that the mammals evolved earlier while continents were joined, but plants and reptiles radiated into diverse groups after separation. hidden in much of the human population. A survey of a class of 36 students finds that 27 (0.75) are right-handed and 9 (0.25) are left-handed. Using the Hardy-Weinberg formula, what would the expected genotypes and allele frequencies be in this theoretical population