Passage VII
The male-to-female body mass ratio (MFMR) of a species can be calculated as follows:
MFMR = Mm ÷ Fm
In this equation, Mm is the average body mass of adult males and Fm is the average body mass of adult females.
The figure shows the MFMR of some species within 4 primate groups: apes and humans; Old World monkeys; New World monkeys; and prosimians. A species with an MFMR of 1 is monomorphic with respect to body mass. A species with an MFMR different than 1 is dimorphic with respect to body mass. (Note: In the figure, MFMR values are calculated to the nearest tenth.)
38. According to the figure, which of the following primate groups has the largest proportion of monomorphic species?
Your Answer is
Correct Answer is J
Explanation
In fact, it is to see that the species with MFMR of 1 in the primate group is the most, obviously prosimians