Appendages are body parts that extend from the main body of an organism. In animals, these can include limbs like arms and legs, as well as fins and wings. For example, the human arm is an appendage that helps us perform various tasks, from lifting objects to writing. In insects, antennae serve as appendages that help them sense their environment. In plants, appendages can refer to structures like leaves and flowers that grow from the main stem. These parts play crucial roles in processes like photosynthesis and reproduction. For instance, the flower is an appendage that attracts pollinators, ensuring the plant can reproduce and thrive.