The big animals
Echinodermata and Chordata Quiz
Test your knowledge on the fascinating world of echinoderms and chordates with our comprehensive quiz! This quiz consists of 31 questions that delve into the differences, characteristics, and classifications of these unique animal groups.
Whether you are a student, a teacher, or simply an enthusiast, this quiz is designed to enhance your understanding of marine biology.
- Explore various animal groups including echinoderms, hemichordates, and vertebrates.
- Challenge yourself with questions ranging from basic traits to advanced concepts.
- Enhance your learning experience with instant feedback on your answers.
In contrast to protostomes, the blastopore of the echinoderm becomes the
Skeleton
Mesoderm
Mouth
Anus
Gonad
Sea lilies and sea daisies belong to the Clade
Asteroidea
Ophiuroidea
Holothuroidea
Echinoidea
Crinoidea
Sea cucumbers belong to the Clade
Asteroidea
Ophiuroidea
Holothuroidea
Echinoidea
Crinoidea
Sea urchins and sand dollars belong to the Clade
Asteroidea
Ophiuroidea
Holothuroidea
Echinoidea
Crinoidea
Many adult echinoderms exhibit
No
Radial
Biradial
Pentaradial
Bilateral
All living species of echinoderms live in
Rainforests
Marine habitats
Freshwater lakes and ponds
Rivers
Estuaries
Evisceration is a defensive behavior of
Asteroideans
Ophluroideans
Holothuroidea
Echinoids
Crinoids
___ graze upon algae growing on coral reefs.
Sea urchins
Sea stars
Brittle stars
Sea daisies
Sand dollars
Which of the following traits are not shared by all chordates sometime during life history?
Postanal tail
Notochord
Brain
Dorsal hollow nerve cord
Pharyngeal gill slits
Which of the following is not a deuterostome trait?
Endoskeleton derived from mesoderm
Radial cleavage during development
Blastopore becomes the mouth
Enterocoelic formation of the body cavity
Respiratory system
An example of a cephalochordate is:
A sea squirt (tunicate)
An acorn worm
A pterobranch
A hagfish
A lancelet
An example of an animal in the subphylum Urochordata is the:
A sea squirt (tunicate)
An acorn worm
A pterobranch
A hagfish
After completing metamorphosis, ascidacean urochoradates generally have only chordate characteristics.
5
4
3
2
1
Hemichordates, cephalochordates and urochordates:
Only occur in marine environments
Are entirely freshwater
Are diadromous
Live in tropical rainforests
Are parasites as larvae, but predators as adults
Which of the following is not a characteristic of vertebrates?
Cranium
Vertebrae
Neural crest cells
Bone
Water vascular system
Ascidaceans, larvaceans and thaliaceans are examples of:
Cephalochordata
Hemichordata
Urochordata
Vertebrata
Echinodermata
The most closely related, living relatives of the chordates are animals that are members of the phylum:
Echinodermata
Hemichordata
Arthropoda
Mollusca
Annelida
The first chordates appeared approximately:
540 mya
400 mya
225 mya
65 mya
1 mya
The parasitic, spiny-headed worms are members of the phylum:
Mollusca
Annelida
Syndermata
Ectoprocta
Platyhelminthes
Bryozoans have unusual feeding structures known as:
Ctenes
Lophophores
Endostyles
Radulas
Wheel organs
_______ are ectoparasites on lobsters
Gastrotrichs
Cycliophorans
Syndermatans
Nemerteans
Annelids
Leeches and earthworms are examples of animals in the phylum
Mollusca
Nemertea
Annelida
Syndermata
Gastrotricha
Snails, bivalves, chitons are cephalopods are examples of animals placed into the phylum:
Mollusca
Nemertea
Annelida
Syndermata
Gastrotricha
The foot, mantle and visceral mass are major body regions of:
Flatworms
Nemerteans
Ectoprocts
Molluscs
Annelids
_______ are vermiform animals that have a long proboscis that can be everted to capture prey.
Annelids
Gastrotrichs
Nemerteans
Cycliophorans
Flukes
The jelly-like substances in the body of a cnidarian is known as:
Spicules
Mesoglea
Mesohyal
Gastrodermis
Epidermis
The comb jellies are placed into the phylum:
Cnidaria
Acoela
Platyhelminthes
Mollusca
Ctenophora
____ lack a circulatory system
Molluscs
Arthropods
Chordates
Annelids
Platyhelminthes
Corals belong to the phylum:
Cnidaria
Acoela
Platyhelminthes
Mollusca
Ctenophora
Sponges and cnidarians occur in:
A. Freshwater ecosystems
B. Marine habitats
C. Tropical rainforests
D. A and B only
E. A, B and C only
The polyp and medusa are morphotypes of
Cnidarians
Ctenophores
Poriferans
Acoelans
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