It can soak into their skin and body and can harm them very bad. It messes with their environment and ruins that too. If you have any further questions plz let me know. Thank You.
The life-form during the Precambrian time was cyanobacteria.
The model describes how cellular membranes i.e. lipid bilayers are organized. Despite the fluidity, lipid bilayers can form certain domains with different characterisrics and compositions. The cell can use different mixtures of lipids to create a 'mosaic' or 'patchwork' of domains.
An example of such domains are so called 'lipid rafts' which are aggregates of certain lipids (mostly cholesterol and sphingomyelins). In these rafts the lateral diffusion of membrane-bound proteins is strongly reduced, thereby forming stable complexes to facilitate, for example, signal-processing and transduction.
Note that a lot about how or why a cell creates these domains is still unknown.
It is constant acceleration since acceleration of free fall occurs near the earth surface