Niche 2
What is used to represent the direction of energy transfer in a food chain/web?
(1 Point)
lines
circles
arrows
nothing

answer; a muscle cell, another neuron and a of the above

while the heads of the phospholipid structure attract water, the tails are hydrophobic. the model shows how the hydrophilic section folds around the fluid molecules to bring them into the cell so they don’t need to pass through the hydrophobic tails.