Help pleaseee The cell membrane is selectively permeable, or semipermeable, meaning that

A)all substances can cross at any time.
B)large molecules can pass through without help.
C)only water can cross.
D)it only permits certain substances to cross.

It is definitely D

Explanation:

the term semipermeable means it only allows SOME things to go through

D, it only permits certain substances to cross.

Explanation:

This answer is similar to the one that I came across on Edge 2020

And I got it right

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.