Answer: cell membrane
such as water, micro-organism
physical process
simple diffusion, osmosis and filtration
such as potasssium permaganate in water,urea a liver waste diffuses from the body and the kidney help in filtering it out
physiological processs
active transport, phagocytosis and pinocytosis
such as soduim-potassium pump, exocytosis
Explanation: transportation in and out of cell is done in different ways listed above but a barrier to this movement is the cell membrane which is an outer covering of the cell. it protect the cell and only some materials can penetrate the cell membrane e.g micro-organism, water e.t.c. the various physical and physiological processes are the various ways substance cna be liquid, solid or gas are transported within or outside the cell e.g food
<span>Most of the energy released by nuclear fission is in the form of gamma rays.
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It is the scrotum, indeed.
Vas happenin!!
“Instead of increasing biodiversity, elephants are decreasing it in some areas. Habitats used by other organisms are being destroyed. Write that paragraph “. Todays world is getting smaller and elephants are not having much room to live there lives
Hope this helps
-Zayn Malik 1795
