How would the exchange of molecules between an organism and its environment be affected if the membrane were less permeable? (3 points)
a) Fewer membrane proteins would be needed to carry out active transport of nutrients.
b) Molecules needed for growth would have more difficulty diffusing across the membrane.
c)Organisms would be more susceptible to harmful substances crossing the membrane.
d) The membrane would rearrange to form a single phospholipid layer to transport materials.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."