Lipid bilayer model was proposed for its structure but it was modified and new structure is according to fluid mosaic model. Plasma membrane is selectively permible as it selects small molecules like lipid etc (composition is also of lipid and as solubility principle like dissolve like) so large and charged molecules like plasma and ion can't pass through it. Lipid are in form of layer so at the chain when ever other phosphate group attach the place conjugate molecule (phospholipid ) formed
They get runoff into water sources which can be injested by fish which can be injested by birds or any animal who eats the fish or drinks the water including us!
Sponge ? i may be wrong though
Answer:
D, mendel
Explanation:
He discovered the fundamentel laws of inheritance