Ecdysozoans exam Flashcards

Protostomes that grow by shedding their cuticle.

Segmented bodies, exoskeletons made of chitin, and jointed appendages.

A tough external coating that ecdysozoans shed to grow.

Invertebrates like millipedes and centipedes with many legs.

A body segment in crustaceans where the head and thorax are fused.

Hemocoel, filled with hemolymph.

Genes that control the development of body segments in animals.

To detect movement and changes in light and dark.

A group of arthropods with claw-like feeding appendages and simple eyes.

Special appendages in arachnids used for reproduction.

Body segments in arthropods, such as head, thorax, and abdomen.

Complete metamorphosis involves a larva stage that looks different from the adult, while incomplete metamorphosis involves nymphs that resemble adults.

The fluid in the hemocoel of arthropods, similar to blood.

Arthropods, myriapods, crustaceans, and hexapods.

A hardened cuticle that provides support and protection to arthropods.

Openings in the cuticle that allow for gas exchange.

Aquatic and terrestrial arthropods with a cephalothorax and abdomen.

A well-studied nematode used extensively in laboratory experiments.

The most diverse group of arthropods, commonly known as insects.

Hexapods have three pairs of legs and compound eyes, while crustaceans have 19 appendages and two pairs of antennae.

A subgroup of chelicerata with two tagmata and four pairs of walking legs.

A hard exoskeleton piece that covers and protects the cephalothorax.

Unsegmented worms with a cuticle that they shed periodically to grow.

Complete metamorphosis and incomplete metamorphosis.

Arthropods with many legs, including millipedes and centipedes.

Claw-like feeding appendages and lack of antennae.

A developmental process in hexapods involving significant changes in form.

They allow for a variety of body forms and functions, contributing to the success of arthropods.

An open circulatory system with spiracles for gas exchange.