Invertebrate Deuterostomes

Vocabulary flashcards focused on key terms and concepts related to Invertebrate Deuterostomes.

Deuterostome

An organism where the blastopore develops into the anus during embryonic development.

Phylum Echinodermata

A phylum comprising marine animals characterized by a calcareous endoskeleton and pentaradial symmetry.

Water vascular system

A network of hydraulic canals used for locomotion, feeding, and gas exchange in echinoderms.

Class Asteroidea

A class within Echinodermata that includes sea stars, known for having usually five arms.

Aristotle’s lantern

A complex chewing apparatus found in sea urchins used for feeding.

Proboscis

An elongated, flexible structure used by hemichordates for feeding and locomotion.

Notochord

A flexible rod providing skeletal support in chordate embryos.

Pharyngeal slits

Gaps in the pharyngeal region that allow for various functions including gas exchange in vertebrates.

Tadpole larva

A larval stage characterized by a free-swimming form found in some chordates.

Endostyle

An organ that produces mucus to catch food particles; a characteristic of different chordates.