An organism that lives in or on an organism of another species (its host) and benefits by deriving nutrients at the other's expense; So basically, what you’ll be getting at is C, only harms another organism.
25% of the offspring would have pure white fur.
The answer is Fish. An autotroph is a self feeding organism that produces complex organic compounds. Generally using energy from light. A fish doesn’t make its own food.
C: communicate a result.
This is where you write a paper, make a presentation, etc. and present or share your conclusions and findings during the experiment with your fellow peers.