Some animals in phylum arthropods is a spider, centipedes or crabs.
Golly! There are tons of arthropods! Spiders are arachnids, which are arthropods. So are centipedes. Lobsters and crabs (and I think crayfish) are types of crustaceans, which are arthropods. And every insect you ever met, including ants, bees, wasps, and beetles, are arthropods.
Arthropods reproduce sexually . Fertilization is mostly internal but in some species it is indirect . In most arthropods fertilization is direct . Most arthropods are oviparous i.e. they lay eggs . Metamorphosis takes place .
Some arthropods can produce a smelly odor like a carabid beetle or some millipedes. Some will bleed a toxic blood to destroy their enemies.
chelicerates
chelicerates
False
Only some arthropods have a cephalothorax, like for example the lobster. Other arthropods have functionally separate (or non-fused) head and thorax, like many insects.
No, not all. Remember some arthropods are aquatic; the spiracle/trachea/tracheole system utilized by terrestrial insects is largely replaced by gills in marine arthropods.
They express the characteristics inherent to arthropods. All insects are arthropods. Not all arthropods are insects.
some have bilaterial some don't have any
they are invertebrates with jointed legs.........