Membrane phospholipids are arranged in a bilayer with hydrophilic heads on the outside and hydrophobic tails in the middle. What is the advantage of this
arrangement?
A.) the phospholipid heads can interact with water inside and outside the cell

B.) the phospholipid heads repeal water inside and outside the cell

C.) the bilayer will not let any materials pass through it

D. the bilayer forms a non- permeable barrier

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant

During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.