Since the question seemed to be incomplete, here's a brief apprehension about phases of the moon which might be of help.
There are several lunar phases namely: <span>New Moon, Full Moon, Waning and Waxing Crescent, Waning and waxing Gibbous, First Quarter, and the Last Quarter.
> Waning--means getting less illuminated each night; waxing means becoming more illuminated each night.
> Waning Gibbous-- less than fully illuminated
> Waxing Gibbous --more illuminated than half</span>
In 1895, Ernest Overton proposed that cell membranes were made of lipids
According to the lipid bilayer theory, which Gorter and Grendel put forth in 1925, the cell membrane bilayer structure can be described using crystallographic research and observations of soap bubbles.
<h3>What is Cell membrane ?</h3>
All cells have a cell membrane, also known as a plasma membrane, which separates the interior of the cell from the external environment.
- A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
- Biological membranes serve three main purposes. First, they prevent harmful substances from entering the cell. Second, they have receptors and channels that let certain molecules, like ions, nutrients, wastes, and metabolic products,
- Third, they divide metabolic processes that are necessary but incompatible that take place within organelles.
Learn more about Cell membrane here:
brainly.com/question/1768729
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Answer:
i think its A but i'm not sure.
