Which of the following statements describes the head of a phospholipid molecule?
it is negatively charged.
it is hydrophilic.
it is like the bread of a sandwich in cell membranes.
all of the above are correct.

d) center of the mid-ocean ridge

give brainleysest

sinserly,

steckh986

he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?