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Distinguish between analogous and homologous structures.
Signaling Molecule
Chemicals that are part of the body's communication system, transmitting information from one cell to another to coordinate bodily functions.
Tissue Transplant Rejection
The immune system's response against a transplanted organ or tissue, leading to its failure and potential loss.
Carrier Proteins
Proteins that transport specific substances across cell membranes through a change in their own structure, vital for the movement of various molecules across cellular barriers.
Receptor Proteins
Proteins on the cell surface or within cells that bind to specific molecules, triggering a response in the cell.
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