Gorillas and orangutans have singlemale breeding systems whe

Gorillas and orangutans have single-male breeding systems, where females mate with only one male. Chimps, in contrast, have a multi-male breeding system, where females mate with multiple males. Evolutionary biologists hypothesize that multi-male breeding systems will favor the evolution of large testes size. Do the data in the figure shown support this hypothesis? 250 Multi-male systems Single-male systems 100 10 0.2 10 100 200 Body weight (kg) Click to view larger image. o Yes. Larger males have larger testes, which supports the hypothesis. o No, testes size decreases as the number of mates increases. o Yes. Testes size increases with body weight, but in multi-male systems, testes size is disproportionately larger. o No. The data only demonstrate that testes size increases with increasing body size, but they do not address the hypothesis regarding mating systems.

Solution

Yes. Testes size increases with body weight, but in multi-male systems, testes size is disproportionately larger.

Here as the body weight is increasing, the testes weight is also increasing, this clearly shows that testes weight is showing positive correlation with the body weight. And in case of multi-male system, the testes weight is more when compared to single male systems.