The cell membrane is made of phospholipids and is selectively permeable, or semipermeable.

which major theme in biology does this statement represent?

Its when you don't know nothing and lose most of your cells and barely know aything p.s IGMME

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.