Biodiversity is of great importance in order to maintain stable ecosystems. An ecosystem is a group of life forms that live together in a balanced and stable community. If there is a sudden change in that community’s environment, the balance of the community may change which may cause it to be destroyed.
The best answer is C
Carrier and channel proteins are involved in facilitated diffusion.
A carrier protein is a transport protein that is specific to a particular type of ion, molecule or substance.
It is a special protein that binds to a molecule and carries the bound molecule across the cell membrane. The protein changes its shape so that it can fit into the channels that run through the membrane and then goes through the channel with its cargo.
A channel protein is a transport protein on the cell membrane and acts like a pore, allowing ions and small molecules to pass through more efficiently.
The medulla oblongata<span> helps regulate breathing, heart and blood vessel </span>function<span>, digestion, sneezing, and swallowing. </span>
Oil is an example for being such a low density to float on water
