The player might of break his arm and he just don't know it
This change in chromosome number is the result of B. Fertilization. Both of the individual gametes from the male and female combine together to produce a zygote or developing offspring that is diploid in most cases, and possess both sets of genetic content or chromosomal information, one from each parent.
Venus is the answer. That planet has a dense atmosphere of CO2, which has produced a runaway greenhouse effect.