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Which subphyla of arthropoda is caracterized by animals lacking antennae?
The subphyla of arthropoda that does not have antennae is chelicerata. Chelicerates, which include spiders and scorpions, are missing the first segment of nerve ganglion which controls antennae in other arthropods.
What structures of chelicerates are analogous to the antennae of chilopods and other mandibulates?
A chelicerate does not have antennae because it is missing the nerve bundle that would control that structure. Instead, chelicerates use setae to detect changes in air currents and provide equivalents to smell and taste.
Which arthropod group has no antenna?
The Arachnid class is an example of an arthropod group characterized by possessing two main body segments, eight legs, but having no antennae. All arthropods except chelicerates and proturans have antennae. (The chelicerates include arachnids, horseshoe crabs, and sea spiders.)
What is two chelicerates?
Chelicerates are a subphylum of arthropods that include creatures such as spiders and scorpions. They are characterized by the presence of chelicerae, which are specialized mouthparts used for feeding. Other notable features include their segmented bodies, typically divided into two main parts: the cephalothorax and abdomen, and the absence of antennae. Other examples of chelicerates include horseshoe crabs and ticks.
What arthropods have two pairs of antennae?
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.
What are the differences between chelicerates and uniramians?
Chelicerates and uniramians are two distinct groups within the arthropods. Chelicerates, which include spiders, scorpions, and ticks, possess specialized mouthparts called chelicerae and typically have two body segments: the cephalothorax and abdomen. In contrast, uniramians, which encompass insects and myriapods (like centipedes and millipedes), have a single pair of antennae, mandibles for feeding, and a body divided into three main parts: head, thorax, and abdomen. Additionally, uniramians usually have segmented appendages (limbs) that are often unbranched, whereas chelicerates have simpler, often non-segmented appendages.
Do chelicerates have wings?
no chelicerates are mostly spiders or scorpions or horseshoe crabs
Are wings found in insects and chelicerates?
Yes, wings are found in insects, but not in chelicerates such as spiders and scorpions. Chelicerates have evolved a different body plan that does not include wings for flight.
Which arthropods do not have antennae?
All arthropods apart from most insects have wings.
What are Arthropods with fangs?
chelicerates
How many segments do chelicerates have?
3
What are the jaws found on some arthropods?
chelicerates
