Marine Bio Unit 3

Front 1

thorax

Back 1

a division of an animal's body that lies between the head and the abdomen.

Front 2

chitin

Back 2

the main component of the exoskeletons of arthropods

Front 3

exoskeleton

Back 3

a rigid external skeleton that supports the body, protects the internal organs, and has flexible joints that allow for movement

Front 4

compound eye

Back 4

a tpe of eye, found in arthropods, that is composed of numerous independent subunits called ommatidia. Each ommatidium apparently contributes a piece of a mosaic-like image perceived by the animal

Front 5

internal fertilization

Back 5

the union of sperm and egg inside the body of the female

Front 6

brooding

Back 6

the period during which a female crustacean carries her fertilized eggs in a pouch beneath her legs

Front 7

scientific name for barnacle

Back 7

cirriped

Front 8

scientific name for claw feet

Back 8

cheliped

Front 9

walking legs

Back 9

the rear five pairs of thoracic appendages

Front 10

swimmerets

Back 10

biramous appendages which are attached to the abdomin of arthropods and beat rhythmically to help in swimming

Front 11

carapace

Back 11

the large, smooth saddle-shaped structure at the anterior end of a shrimp, covering the head and thorax

Front 12

cephalothorax

Back 12

an anatomical term used in arachnids and malacostracan crustaceans for the first (anterior) major body section

Front 13

antennules

Back 13

a second, smaller pair of antennae on the heads of crustaceans

Front 14

pentamerous radial symmetry

Back 14

radial symmetry along 5 axises

Front 15

endoskeleton

Back 15

a rigid internal skeleton with flexible joints to allow for movement

Front 16

ossicles

Back 16

calcium carbonate components which form the endoskeletons of starfish and other echinoderms

Front 17

water vascular system

Back 17

a hydraulic system used by echinoderms for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet. Echinoderms move by alternately contracting muscles that force water into the tube feet, causing them to extend and push against the ground, then relaxing to allow the feet to retract.

Front 18

ampullae

Back 18

a balloonlike fluid reservoir attached to each tube foot

Front 19

tube feet

Back 19

the many small tubular projections found on echinoderms, operating through hydrollic pressure and allowing for locomotion.

Front 20

pedicellaria

Back 20

a small wrench or claw-shaped structure commonly found on Echinoderms, which keeps the body surface free of algae or other junk

Front 21

Aristotle's lantern

Back 21

a sea urchin's mouth, made up of five calcium carbonate teeth or jaws, with a fleshy tongue-like structure within

Front 22

what phylum are barnacles in?

Back 22

phylum arthropoda

Front 23

what phylum are copepods in?

Back 23

phylum arthropoda

Front 24

what phylum are amphipods in?

Back 24

phylum arthropoda

Front 25

what phylum are isopods in?

Back 25

phylum arthropoda

Front 26

what phylum are shrimp in?

Back 26

phylum arthropoda, order decapoda

Front 27

what phylum are lobsters in?

Back 27

phylum arthropoda, order decapoda

Front 28

what phylum are crabs in?

Back 28

phylum arthropoda, order decapoda

Front 29

what phylum are sea stars in?

Back 29

phylum echinodermata, class asteroidea

Front 30

what phylum are sea urchins in?

Back 30

phylum echinodermata, class echinoidea

Front 31

what phylum are sea biscuits in?

Back 31

phylum echinodermata, class echinoidea

Front 32

what phylum are sand dollars in?

Back 32

phylum echinodermata, class echinoidea

Front 33

what phylum are sea cucumbers in?

Back 33

phylum echinodermata, class holothuroidea

Front 34

what kind of symmetry do phylum arthropoda have?

Back 34

segmented bilateral symmetry

Front 35

what kind of sensory receptors do phylum arthropoda have?

Back 35

compound eyes, chemosensory, complex behavior

Front 36

who comprises order decapoda?

Back 36

lobsters, crab, shrimp -- large crustaceans

Front 37

what are the characterstics of order decapoda? (there are 4)

Back 37

- carniverous predators, scavengers
- internal fertilization, brooding
- molting, exoskeleton
- locomotion

Front 38

how would one describe the symmetry found in phylum echinodermata?

Back 38

pentamerous radial symmetry

Front 39

what kind of sensory receptors do members of phylum echinodermata have?

Back 39

light spots, chemo- and mechano- sensory receptors

Front 40

what kind of anatomy do members of phylum echinodermata have?

Back 40

- nerve ring, radial nerves
- endoskeleton
- water vascular system

Front 41

characteristics of class asteroidea (think food, movement, anatomy, reproduction)

Back 41

- benthic, carnivorous predators
- oral, aboral surfaces
- water vascular system
- nerve ring, radial nerves
- separate sexes, broadcast spawning

these dudes are STARFISH

Front 42

characteristics of class echinoidea (think food, movement, anatomy, reproduction)

Back 42

- benthic, herbivorous grazers, deposit feeders, or filter feeders
- lack rays (arms)
- tube feet, aristotle's lantern
- separate sexes, broadcast spawning

Front 43

characteristics of class holothuroidea (think food, movement, anatomy, reproduction)

Back 43

- benthic deposit feeders
- small, disconnected ossicles
- predator avoidance -- throw internal organs at predators