The fluid mosaic model of membrane structure suggests that membranes Question 3 options:

are composed of a single fluid layer of phospholipids and proteins

are composed of a fluid bilayer of fatty acids with proteins associated on the outer and inner surfaces

are composed of protein molecules embedded in a fluid bilayer of phospholipids

are composed of a fluid phospholipid bilayer sandwiched between two layers of hydrophilic proteins

Wich organism obtains its energy from dead or decaying matter

Which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea. c. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. d. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated.

The structure of cells has changed significantly overtime. what concept explains the presence of mitochondria in cells?