Red Blood Cells i believe are not part of the immune system. They carry oxygenated blood to the organs of the body
Answer:
Nadando.
Ciclismo.
Usando una bicicleta elíptica.
Caminando.
Remo.
Explanation:
For people who speak English
Swimming
Cycling.
Using an elliptical bike.
Walking.
Rowing.
It’s the endometrium, which is the lining of the uterus. Eggs develop in the ovaries.
