Final answer:
Nerve cells and red blood cells are two examples of specialized cells. Nerve cells have long extensions that help them transmit electrical messages, while red blood cells are specialized to carry oxygen through the blood.
Step-by-step explanation:
Two examples of specialized cells are nerve cells and red blood cells.
Nerve cells:
Nerve cells, also known as neurons, have long extensions called axons that help them carry electrical messages to other cells. This allows them to transmit signals throughout the body.
Red blood cells:
Red blood cells are specialized to carry oxygen quickly through the blood. They contain a protein called hemoglobin, which binds to oxygen and transports it to tissues throughout the body. Their concave shape allows them to squeeze through narrow blood vessels and maximize the surface area available for oxygen exchange.