There is no definite amount that is why it is also called multiple gene inheritance
They will have like a shell or strong suction or something to survive the rough tides
2:
- cellular organization
- metabolism
- homeostasis
- hereditary
- growth and development
- response to stimuli
- adaptation to evolution
4: Photosynthesis
those are the ones I am pretty sure are correct, I am so sorry I haven't been in biology in so long :(