Final answer:
An early somatic effect of irradiation is the damage caused to rapidly reproducing cells in the body, leading to symptoms like nausea, hair loss, and bone aches.
Step-by-step explanation:
An early somatic effect of irradiation would be the damage caused to rapidly reproducing cells in the body.
This includes cells in the stomach lining, hair follicles, bone marrow, and embryos.
When these cells are exposed to radiation, patients may experience symptoms such as nausea, hair loss, and bone aches.