What is true about the structure or function of the plasma membrane? a) large molecules often cross the plasma membrane while inside vesicles b) hydrophobic molecules keep the cell from getting too much water c) the bilayer structure forms a solid boundary that separates the cell from its environment. d) it is made entirely of integral proteins well make brainlest i rlly need im doing the test right !

Permeable to ions and organic molecules and controls the movement of substances in and out of cells. Protects the cell from its surroundings.
hope this helps

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.