Final answer:
The word root 'troph' means nourishment. It is often used to describe processes related to providing energy to cells or organisms.
Step-by-step explanation:
The word root troph means nourishment. In anatomy and physiology, this root is often used to describe processes related to nourishing or providing energy to cells or organisms. For example, autotrophs are organisms that can produce their own food, while heterotrophs rely on consuming other organisms for nourishment.