Here's why:

* Grass: Grass is a plant, and plants are living organisms. They grow, reproduce, and respond to their environment.

* Fruit: Fruit is also part of a plant. It develops from the flower of the plant and contains seeds. Fruits are essential for the plant's reproduction and also provide food for animals, which helps with seed dispersal.

Therefore, both grass and fruit are living organisms because they fulfill the characteristics of life, including growth, reproduction, and response to stimuli.