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Crustaceans are arthropods characterized (and classified) by their biramous (branching) appendages, which include two antenna pairs. The smaller set are referred to as antennules.
All other arthropod groups have one pair except chelicerates and proturans, which have no antennae.
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How do crustaceans arachnids and centipedes and millipedes differ?
A crustacean is an arthropod that has two or three body sections, five or more pairs of legs, and two pairs of antennae. Arachnids are arthropods with two body sections, four pairs of legs, and no antennae. Arachnids are arthropods with two body sections, four pairs of legs, and no antennae.
Crustaceans are the only arthropods that have?
Crustaceans have exoskeletons, two pairs of antennae, two pairs of maxillae, biramous legs, and mandibles, which are like jaws.
How many antennas does a crustacean have?
Crustaceans are the only arthropods with two pairs of antennae
The possession of two pairs of antennae is a characteristic of?
The possession of two pairs of antennae is a characteristic of crustaceans, which are a diverse group of arthropods that include crabs, lobsters, and shrimp. These antennae are used for sensing the environment, detecting food, and communicating with other members of the species.
Why are crustaceans unique?
Crustaceans are unique because they are protected by a hard exoskeleton. They are the only arthropods with two pairs of antennae. They also have two pairs of maxillae, mandibles, which are like jaws, and have biramous legs, which means they bend in two places.
Do decapods have two pairs of antennae?
They do
What has two pairs of antennae?
Insecta
They have thick cuticle and two pairs of antennae?
Arthropods, more specifically, crustaceans, have a thick, tough cuticle and two pair of antennae. The cuticle acts as an exoskeleton and two pair of antennae to help them find food and keep them safe.
Which group of arthropods have anennae?
Almost all arthropods have a pair of antennae on the front body segments, with crustaceans having biramous or split ones (resembling two pairs, the smaller pair called antennules). Some exceptions are the arachnids like spiders and scorpions which have none; and among the hexapods, the proturans have no wings, eyes, or antennae.
Which arthropods have four antenna?
The crustaceans are arthropods with biramous (branching) appendages, including a larger and smaller pair of antennae, the smaller ones being referred to as antennules.
Do all arthropods have antennae?
no
How many antennae does a lobster have?
Lobsters, like all crustaceans, have two pairs of antennae.
