Which term describes animals that can be divided into left and right halves?

The term that describes animals that can be divided into left and right halves is bilateral symmetry. In organisms exhibiting bilateral symmetry, there is a single plane of symmetry, which can be drawn vertically through the center, resulting in two identical halves – one on the left and one on the right. This type of symmetry is commonly found in animals with a more complex structure, such as most mammals, birds, and insects, allowing for streamlined movement and better coordination of sensory organs, which enhance their ability to interact with the environment.

Radial symmetry, in contrast, is a type of symmetry found in organisms like jellyfish or sea anemones, where multiple planes can divide the organism into similar sections around a central axis. Asymmetry refers to animals that do not exhibit any form of symmetry and have an irregular shape, like certain sponges. Pseudocoelomates is a term that refers to a classification of animals with a body cavity that is not completely lined with mesoderm; it does not pertain to symmetry.

Bilateral symmetry is a crucial evolutionary trait that supports the development of more complex body structures and functions, making it an essential concept in understanding animal morphology and behavior.