Crustaceans are distinguished from other arthropods in that their appendages are biramous (branch into two parts), and that they have a larval form which has a single eye and antennae used for swimming (nauplius). One might also assume they differ from most other arthropods in that they are aquatic, but there are both aquatic non-crustaceam arthropods (like the horseshoe crab and the sea spider), and non-aquatic crustaceans (like the terrestrial woodlouse).
Note that the term "anthropod" should not be confused with arthropod - the former is a broad term and not a taxon, meaning human or human-like.
Approximately 84% of all animals are classified as arthropods, making them the largest animal group on Earth in terms of species diversity. Arthropods include insects, spiders, crustaceans, and other invertebrates with segmented bodies and exoskeletons.
Their ten walking legs, and their split nature (biramous). All their legs are tiny pincers matching the main ones, unless the segment is fused.
lizards and other anthropods but not all
Anthropods is the largest and most diverse of all animals. These animals have segmented bodies that are supported by an exoskeleton. This group includes spiders, crustaceans, millipedes, and centipedes.
no
A defining statement distinguishes a term from all other terms by providing a clear and specific description of its unique characteristics or qualities.
definition
definition
Anthropods (humans) do not have wings; not to be confused with phylum Arthropoda (arthropods). Many arthropods have wings (insects are arthropods, including flying insects), but, of course, not all of them.
definition
Yes, all crustaceans are invertebrates.
Yes, all crustaceans have hearts.