All mollusks exhibit bilateral symmetry, meaning their body can be divided into two mirror-image halves along one plane. While some mollusks, such as bivalves, have hinged shells, this trait is not universal among all mollusks. Radial symmetry and the ability to swim are also not characteristics found in all mollusks. Thus, bilateral symmetry is the defining feature present in all members of this diverse phylum.
They are all soft-bodied.
name one anatomical feature (other than symmetry) that distinguishes a planarian from a hydra.
No, arthropods are not radial. They have bilateral symmetry, which means their bodies can be divided into two equal halves. This symmetry is a common feature among many animals, including vertebrates and invertebrates.
Yes, animals with bilateral symmetry typically exhibit a distinct head end, known as the anterior. This feature is part of a body plan where the left and right sides are mirror images, allowing for streamlined movement and directional locomotion. The presence of a head end often includes the concentration of sensory organs and neural structures, enhancing the animal's ability to interact with its environment.
They have shells.
Irregular galaxies show no distinct feature or symmetry.
They are all soft-bodied.
They are all soft-bodied.
They are all soft-bodied.
they are slick slop and slimy
foot
Crabs exhibit bilateral symmetry, meaning their bodies can be divided into two mirror-image halves along a single vertical plane. This symmetry allows for a more streamlined shape, which aids in locomotion. Additionally, many crabs have an asymmetrical feature, with one claw often being larger than the other, which serves functional purposes in feeding and defense.