What is the external covering of an arthropod called?
Arthropods are covered with a tough, resilient integument or exoskeleton of chitin.
What is the body cover of arthropods?
Whether a lobster or a beetle, most of the arthropod body is covered by an exoskeleton called a cuticle. This protects its soft tissues from predators and disease and supports its entire body.
Do all arthropods have a hard outer covering?
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. An insect’s head has a pair of antennae, eyes, and a mouth.
Do arthropods have live young?
Almost all arthropods lay eggs, but many species give birth to live young after the eggs have hatched inside the mother, and a few are genuinely viviparous, such as aphids.
What are the external features of arthropods?
All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages.
What are characteristics of Arthropoda?
What are the important characteristics of arthropoda?
- They possess an exoskeleton.
- They have jointed appendages.
- Their body is segmented.
- They are bilaterally symmetrical.
- They possess an open circulatory system.
What do all arthropods have?
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.
Why do we call the external chitinous covering of an Arthropoda skeleton?
Why do we call the external chitinous covering of an arthropod a skeleton even though it is not made of bone? It acts similar to a skeleton, providing structure and protection. What external features of a horseshoe crab are used for burrowing and scavenging in sand?
Do all arthropods have segmented bodies?
Do all arthropods have antennae?
Except for the chelicerates and proturans, which have none, all non-crustacean arthropods have a single pair of antennae.
What type of development do arthropods have?
Arthropods (and other animals) that undergo direct development do not have a free-living larval form. Rather, the parent animals care for the babies, usually by brooding or encapsulating them (in eggs), and the young have the same form as the adult, but smaller. A small version of the adult is sometimes called a NYMPH.
What type of development is arthropods?
Some specialized methods of reproduction found among certain arthropods include the development of unfertilized eggs (parthenogenesis), the birth of living young (viviparity), and the formation of several embryos from a single fertilized egg (polyembryony).