In males, meiosis is called spermatogenesis because it produces sperm cells. In females, the process is called oogenesis because it produces egg cells, also known as ova. In spermatogenesis, four fully functioning sperm are produced at the end of meiosis. In each round of oogenesis, only one fully functioning egg is formed, and the other three cells produced are non-viable polar bodies.
Check your owner's manual. Regular octane is recommended for most cars. However, some cars with high compression engines, like sports cars and certain luxury cars, need mid-grade or premium gasoline to prevent knocking.ut take note: the recommended gasoline for most cars is regular octane. In fact, in most cases, using a higher octane gasoline than your owner's manual recommends offers absolutely no benefit.
1 Jet suggests using 91 or 93 octane gasoline to achieve stated maximum power gains with the Performance Module.  Flex Fuel Vehicles: fueling with E85 is not recommended in conjunction with your Jet unit. Burning E85 reduces efficiency and power compared to using gas, which nullifies the effect of Jet's programming.