The fluidity of the cell membrane is maintained by
A. the absence of double bonds in the bilayer.
B. the presence of double bonds in the bilayer.
C. the non-polarity of the bilayer.
D. transmembrane proteins.

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Whats one way that rocks do not follow the typical rock cycle pathway?

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.