Echinoderm

Question 1

Organism characterized by tube feet, a calcite body-covering, and a five-part symmetrical body.

Answer 1

Echinoderm

Question 2

is the internal bone or cartilage structure of animals which have a vertebra and some animals without vertebra.

Answer 2

Endoskeleton

Question 3

is a small wrench- or claw-shaped appendage with movable jaws

Answer 3

Pedicellariae

Question 4

is an essential part of the circulation system in echinoderms

Answer 4

Madreporite

Question 5

one of the numerous minute canals lined with choanocytes which radiate from the paragastric cavity in some sponges and end just below the surface of the sponge.

Answer 5

Radial canal

Question 6

circular water tube that surrounds the esophagus of echinoderms.

Answer 6

Ring canal

Question 7

the arms/limbs of an echinoderme

Answer 7

Arm / Ray

Question 8

symmetry around a central axis, as in a starfish or a tulip flower.

Answer 8

Radial Symmetry

Question 9

arrangement of an organism or part of an organism along a central axis, so that the organism or part can be divided into two equal halves

Answer 9

Bilateral Symmetry

Question 10

is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration.

Answer 10

Water Vascular System

Question 11

The abdominal part that extends from the mouth to the end of each ray or arm.

Answer 11

Ambulacral Groove

Question 12

Any small bony or chitinous structure found in various skeletal parts of animals.

Answer 12

Ossicles

Question 13

one of the tubular pouches opening into the alimentary canal in the pyloric region of most fishes

Answer 13

Pyloric Caecum

Question 14

the distal aperture of the stomach, opening into the duodenum.

Answer 14

Pyloric Stomach

Question 15

a midgut with outpocketings called digestive glands, or hepatopancreas; and a hindgut, or rectum

Answer 15

Cardiac Stomach

Question 16

Any membranous bag shaped like a leathern bottle, as the dilated end of a vessel or duct; especially the dilations of the semicircular canals of the ear.

Answer 16

Ampullae

Question 17

The sex organ producing gametes

Answer 17

Gonads

Question 18

Circular structure that connects the limbs in a starfish

Answer 18

Central Disc

Question 19

fluid-filled muscular tubes of echinoderms, such as the starfish or sea urchin, used for locomotion, respiration, and grasping food or prey.

Answer 19

Tube Feet

Question 20

is a male organism’s sperm fertilizing a female organism’s egg outside of the female’s body

Answer 20

External Fertilization

Question 21

is the process of renewal, restoration, and growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage.

Answer 21

Regeneration

Question 22

Any one of numerous species of echinoderms belonging to the class Asterioide

Answer 22

Sea star

Question 23

ophiuroids are echinoderms in the class Ophiuroidea

Answer 23

Brittle star

Question 24

any of numerous echinoderms (class Echinoidea) that are usually enclosed in thin brittle globular tests covered with movable spines.

Answer 24

Sea urchin

Question 25

burrowing sea urchins belonging to the order Clypeasteroida.

Answer 25

Sand dollar

Question 26

Crinoids are marine animals that make up the class Crinoidea of the echinoderms

Answer 26

Sea lilies

Question 27

any of the 550 living species of crinoid marine invertebrates (class Crinoidea)

Answer 27

Feather stars

Question 28

any echinoderm of the class Holothuroidea, having an elongated body covered with a leathery skin and bearing a cluster of tentacles at the oral end.

Answer 28

Sea cucumbers

Question 29

Organism that has no arms, but the circle is rimmed with flat spines that look like daisy petals.

Answer 29

Sea daises