As an animal ages and its hair turns white, the medulla becomes filled with a. water. b. melanin. c. air. d. fat.

Which sequence represents a cross section of the bilayera hydrophilic head, hydrophobic tail, hydrophobic tail, hydrophilic headb hydrophobic tail, hydrophilic head, hydrophobic tail, hydrophilic headc hydrophobic head, hydrophilic tail. hydrophilic tail, hydrophobic headd hydrophilic tail, hydrophobic head, hydrophobic head, hydrophilic tail

What type of lipids are found in all biological membranes?

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?