Question

1. the cell membrane is selectively permeable, meaning that it_________________________.

lets nothing into the cell
lets anything into the cell
only lets sugar into the cell
is picky about what enters the cell

Explanation:

The cell membrane's selective permeability means it controls what substances can enter or exit the cell. It's not completely closed (so "lets nothing into the cell" is wrong), nor does it allow every substance freely ("lets anything into the cell" is wrong). And it's not restricted to just sugar ("only lets sugar into the cell" is wrong). Being "picky about what enters the cell" aligns with the concept of selective permeability.

Answer:

Is picky about what enters the cell