Invertebrates do not have spines (backbones). See related questions and links for more information.
A horseshoe crab is an invertebrate. It lacks a backbone or spine, which are characteristic features of vertebrates.
exsoskeleton, flight
i think it is bilateral body symmetry
Invertebrate animals with spikes and spines all over their bodies.
An arthropod is an invertebrate animal with an exoskeleton , a segmented body, and jointed appendages.
Mollusks compose of the large phylum of invertebrate animals known as the Mollusca. Mollusks have a mantle, mollusks invertebrate. Arthropods have jointed appendages, arthropods have segmented bodies
the characteristic of planaria is has a smooth body and planarian is no have a backbone because planaria is a invertertibrate and invertebrate animals are no have a backbone
The defining characteristic of all molluscs is the presence of the mantle. Snails have a mantle, and are thus a mollusc.
invertebrate - has exoskeleton
An invertebrate.
One trend that did not occur during invertebrate evolution is the development of true segmentation in all invertebrate lineages. While segmentation is a prominent feature in some groups, such as annelids and arthropods, many invertebrates, including cnidarians and mollusks, do not exhibit this characteristic. Instead, invertebrate evolution is marked by a diversity of body plans and organizational structures, with some lineages remaining unsegmented throughout their evolutionary history.
no