Well I will assume you are talking about the bird soooo...
Q3. The flycatcher
Q4. The trees in its forest
Q6. Yes and seasonal leaves from the tree might fall preventing from flycatchers hiding in the trees.
Protection, sensory perception, storage, absorption, sunscreen, dilation, and constriction
Answer: The gene that controls the production of white blood cells will be widely expressed
Explanation: White blood cells fight off viruses so when a virus is detected the genes for white blood cells will be activated.