Nutrient

Imagine trying to complete a puzzle but missing a few crucial pieces. Just like those pieces are essential to complete the image, nutrients are essential substances that organisms need to function properly. In this analogy, the puzzle represents the body, and the missing pieces are like nutrients such as water or minerals; without them, the body cannot maintain its full health and operational picture.
Practice Version

Nutrient: A substance that an organism needs to live, like water or minerals. nutrient. Nutrients are essential compounds in food that organisms need to grow and stay healthy.