Birds are uniquely (an) from other organisms because they all have feathers.

fungus.
bacteria.
classified.
organisms.
backbones.
exoskeleton.
physical.

physical.

The color, shape, and size of an organism are examples of (an) characteristics.

physical.

Which characteristic do all owl families share?

All owl families share the characteristic of having a facial disk, which is a circular arrangement of feathers around their eyes and beak that helps to focus sound onto their ears and aids in their exceptional hearing abilities.

Birds are uniquely different from other organisms because they all have feathers. To understand why feathers are unique to birds, we need to compare them to the other options you listed:

- Fungus: Fungi are a separate group of organisms that include mushrooms, molds, and yeasts. They do not have feathers and are not closely related to birds.
- Bacteria: Bacteria are single-celled organisms that lack feathers.
- Classified: Classification refers to the organization of organisms into groups based on their characteristics. While birds are indeed classified, it does not explain their uniqueness in having feathers.
- Organisms: This term refers to any living entity, including birds. However, again, it does not explain what makes birds unique.
- Backbones: Animals with backbones are called vertebrates. Birds are indeed vertebrates, but not all vertebrates have feathers (e.g., mammals and reptiles).
- Exoskeleton: An exoskeleton is a hard outer covering found in some types of invertebrates, such as insects and crustaceans. Birds do not have an exoskeleton.
- Physical: This is a broad term that can refer to anything related to the body or physical characteristics. While feathers are a physical feature, the term itself does not explain the uniqueness of birds.

In summary, birds are unique among organisms because they possess feathers. Feathers provide birds with various advantages, such as insulation, flight, and display during courtship rituals.