Answer:
commensalism
Explanation:
Commensalism is a symbiotic relationship in which one species benefits from the interaction and the other species is neither harmed nor helped. So the bird is being helped and the bison is being neither harmed nor helped.
P.S. Can you mark me Brainliest please?
Answer: I think it’s waves
Explanation: The energy in waves is constantly breaking rock into smaller and smaller pieces.
Answer:
Adaptive immune defense system consists of lymphocytes like B-lymphocytes and T- lymphocytes. B-lymphocytes provides humoral immunity while T- lymphocytes provide cell-mediated immunity to the body.
99% of lymphocytes circulate freely in the blood and lymph. B lymphocytes differentiate into plasma B cells and B memory cells when interact with antigen presented by T helper cells.
Then plasma cells secrete antibodies in the circulation which binds to extracellular antigens through antigen-binding site. Then the bounded antigen is recognized by receptors present on phagocytic cells. This receptor binds the Fc region of antigen bounded antibody and destroy the antigen by phagocytosis.
Fight or flight, because according to Hans Selye, this occurs at times of danger when your adrenaline is heightened.
Turner pressure is simply the force within the plant cell that pushes the cell membrane or plasma membrane against the cell wall.
It is caused by the Osmotic flow of water through the semi permeable membrane.
It helps the plant cells to remain turgid and stand tall so as to prevent it from wilting