It's rare to see a biologist in game especially at higher rank area where vygoid race is HOT. I would think that biologist race should get good boost maybe increases resistance to invaders such as higher population minimum that could cause resistance increase..
I hope that you'll enjoy your race that you selected cuz we certainly need biologists in game.
Seeing 90% of high rank players playing Vygoids (lot of them switched to vygoid once they are high rank) get dry quick and I refuse to play Vygoid for that reason. I am Konqul (I chose it due to Roleplay reason that it's similar to Klingon) since day one that is rather rare at high rank even though it's common at lower rank. Bottomline.. If the race/class are the lowest % then it deserves the biggest boost while a race/class with highest % should receive some nerfs to equalize the % across the race/class spectrum..