<span>A. Natural selection
Able to find more food means more likely to survive - survival of the fittest i.e. natural selection.</span>
What graph!? If u want me to answer that u have to include a graph sooooo ya
Alcohol works as a central nervous system depressant by <span>binding to neuron receptors.
</span>Alcohol<span> can </span>affect badly on many<span> parts of the brain, it can contracts brain tissues and destroys brain cells, it also depresses the </span>central nervous system, so Alcohol is bad for health but instead of this people drink Alcohol a lot and when a person drink alcohol in excess amount<span> over a prolonged period of time that can cause serious problems with cognition and memory.</span>
Answer;
-Antigen presenting cells
Explanation;
-Helper T cell and inflammatory T cell TCRs recognise epitopes displayed by MHC class II molecules on the surface of antigen-presenting immune cells, including: macrophages that engulf foreign particles such as bacteria; dendritic cells that present antigen to T cells; and B cells that produce antibodies.
-Antigen-present cells APCs engluf antigens, present fragments of antigens to be recognized by T cells
. Major types; dendritic cells in connective tissues and epidermis, macrophages in connective tissues and lymphoid organs &B cells.
