I think the answer would be B.
This would be a gene flow!
The pink snapdragons, I assume, are an offspring of white and red snapdragons. There is a change in the genetic make up of the white dragons, which is influenced by the red snapdragons: so the gene flow was from the red snapdragons to the white ones!
Answer:
Microbes and nutrients are put into the fermenter and air is bubbled through so that the microbes can respire aerobically
Explanation:
Paddle stirrers ensure that the microbes, nutrients and oxygen are well mixed and distributes the heat evenly.
78.08% of nitrogen is on earths atmosphere
