What is the function of a cell’s selectively permeable plasma membrane?

the function of plasma membrane or cell membrane is to protect the internal cell contents from external environment and to maitain the balance between cell & their surrounding.

Explanation:palsma membran also known as selectively permeable membrane is made of phospholipid bilayer in which protein molecules are embeded and these proteins molecules act as receptors,pumps and as channels. and through these channels certain ions, molecules ,enzymes are passing throug it by the process of osmosis and diffusion.So, plasma membrane is not only working to protect the cell from their external surroundings but also keeps checks & balance on the molecules movement inside & outside of the cell.

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: