Answer:
the cell theory is:
1. all organisms are made of cells
2. all cells are produced by other living cells
3. the cell is the most basic unit of life
An amino acid is the building block (or monomer) of proteins :)
C. Macrophages
When Macrophages approach a foreign pathogen they ingest the pathogens through phagocytosis, the Macrophages show the foreign antigen proteins on their cell surfaces.
The Helper T Cell recognizes the antigen on the surface of the macrophage and starts an immune response to the invading pathogen by sending out a chemical message
After that the B-cells produce antibodies that are specific to the antigens of the pathogens that slow them down so the macrophages can engulf them.
Answer:
Movement of water from it higher potential to its lower potential.
Increasing the activations energy barrier
