What is the function of the chelicerae?

What is the function of the chelicerae?

The first pair, the chelicerae, often have claws or fangs. They are used to capture prey (spiders), transport a spermatophore (sunspiders, some mites and ticks), produce sounds (sunspiders, some spiders), cut strands of silk (web-dwelling spiders), and produce silk (pseudoscorpions).

What characteristics are used to classify arthropods quizlet?

Arthropods are classified based on the number and structure of their body segments and appendages—particularly their mouthparts.

What distinguishes crustaceans from other arthropods?

Crustaceans are generally aquatic and differ from other arthropods in having two pairs of appendages (antennules and antennae) in front of the mouth and paired appendages near the mouth that function as jaws.

What are 3 characteristics used to classify arthropods?

All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.

What is the function of a spider’s chelicerae quizlet?

Chelicerae contain fangs and are used to stab and paralyze prey. What is the function of the chelicerae? Air enters through spiracles and then circulates across the surfaces of the book lung.

What is the meaning of a chelicerae?

chelicera. / (kɪˈlɪsərə) / noun plural -erae (-əˌriː) one of a pair of appendages on the head of spiders and other arachnids: often modified as food-catching claws.

What is the function of a spiders Chelicerae quizlet?

What is the function of the arthropod exoskeleton quizlet?

All arthropods have a hard, outer covering called an exoskeleton. It covers, suports, and protects the internal body and provides places for muscles to attach.

What characteristics make crustaceans different from other arthropods quizlet?

The characteristics that distinguish crustaceans from other arthropods are that they have gills, two body systems, and two pairs of antennae. List the nine life processes of animals and briefly tell how a crayfish accomplishes each of these processes.

What is the difference between crustaceans and arachnids?

Unlike crustaceans, arachnids have no antennae and mandibles. Most arachnids are terrestrial, and few are secondarily aquatic, whereas crustaceans are exclusively aquatic. Examples for arachnids include scorpions, spiders, mites, and ticks. Examples of crustaceans are prawns, lobsters, shrimps, barnacles, and crabs.

What is the most important feature of Arthropoda?

The important characteristics of arthropoda include: They possess an exoskeleton. They have jointed appendages. Their body is segmented.

How are tagmata formed?

tagmata) A section of the body of an arthropod that is formed by the fusion of mesodermal somites and has a distinct function and structure.