Flashcards
Crustacean
Cards in this deck (69)
- 1What is the antenna for?For sensing
- 2What is the chela used for? (3 functions)Defense, capturing, and feeding
- 3What does the chela consist of?Dactyl and propodus
- 4Why are the eyes on the stalk?Move eyes around 360, to see all around
- 5What does the cephalothorax consist of? (3 things)Head, thorax, abdomen
- 6Wwhat are the antennules used for?Sensing
- 7What does the term decapoda mean?Decapoda means 10 legs
- 8What is the relationship between decapoda and crustacean?The most crustaceans are decapods, and crustacea is the subphylum of decapoda.
- 9Name 3 common groups of decapodaCrabs, lobsters, and shrimp
- 10What do shrimp do to swim backwards?Doing a movement called a tail snap.
- 11Describe how shrimp swim?The shrimp moves its abdomen in towards the body, and its pleopods used to swim.
- 12What are uropods?Last pair of the abdominal appendages
- 13How do you know if the crayfish is male or female?Male: The first two swimmerets are longer than the rest of the swimmerets
Female: Has an opening in the last two pair of legs where sperm is stored - 14What is a uropod?An appendage that assists in movement and swimming
- 15Name 2 Caribbean cleaning shrimp and their scientific nameCleaner Shrimp (Periclimenes pedersoni), Snapping Shrimp (Alpheus)
- 16Describe basic crab external anatomyPair of chelipeds, thoratic appendages, carapace, eyes, abdomen, and antennae
- 17Describe the physical adaptations of the cancer crab and the advantages of the adaptationThick exoskeleton: for protection
Large chelipeds: For crushing prey
Thin exoskeleton: Fast movement - 18What is the scientific name of the blue crab?Callinectes Sapidus
- 19What is the purpose of the oversized claw of the snapping shrimp?Snaps shut, causing a snapping sound which is a threat to other snapping shrimp.
Snapping also scares predators
This is done by muscle contractions in the dactyl, and propodus. - 20The term "arthropod" meansjointed appendages
- 21Describe the appearance of a crab immediately after moltinglarger with soft shell
- 22When lobster tail is ordered in a restaurant, the ____________ is actually being eatenAbdomen
- 23Material that composes an arthropods exoskeletonChitin
- 24Important food source for baleen whalesKrill
- 25This arthropod has blue blood which contains a substance used to detect bacteriaHorseshoe Crab
- 26Term which means separate male/femaleDioecious
- 27Arthropod characterized with soft abdomen (lacking exoskeleton)Hermit Crab
- 28Why should fisherman only take one claw of the stone crab?Only one claw is edible and regenerates
- 29What is the carapace?Shell of crustacean
- 30Name a "swimming crab" that has paddles on its last pair of legsBlue Crab
- 31Closely related to ticks, spiders, and scorpionsHorseshoe Crab
- 32Name the appendages used by females to hold eggsSwimmerets
- 33What is another name for tail of horseshoe crab?Telson
- 34What is the animal called "decorator crab" because it attaches pieces of seaweed/sponge to its shell?Spider crab
- 35Small, laterally compressed arthropodsAmphipods
- 36Structures that are used to chew/crush foodMandables
- 37Type of eye that is "image forming"Compound eyes
- 38What controls the molting process?Hormones
- 39Where is the lobsters weak point? (place where exoskeleton splits)Between thorax and tail
- 40Where is the horseshoe crabs weak point?Along the front curved edge
- 41Where is the crabs weak point?On the back
- 42In order for the new skeleton to get bigger, what does the arthropod do?Takes in water or air to stretch the soft skeleton before it hardens
- 43What happens to the old exoskeleton? (Molted one)It's eaten by other crustaceans, because they absorb the salt from the skeleton
- 44If the crustacean lost something (such as a claw) does it grow back? If so when?Yes, when the new skeleton is being made it slowly grows back
- 45Name the missing stage of a crab's life cycle ____________, zoea larvae, megalops, adultEgg
- 46Structures used for capturing food and defenseChelipeds
- 47What are the parts of the cheliped?Dactyl, Propodus (or manus), Carpus, Merus
- 48What is the dactyl?Movable "finger" of chela
- 49Which organ functions like kidneys to excrete urine?Green gland
- 50What is often found on back of whales, or turtles?Barnacles
- 51What looks like a terrestrial "pill bug"/ "roly poly?"Isopod
- 52Called a "living fossil"Horseshoe Crab
- 53What is the scientific name of the snapping shrimp?Alpheus
- 54What is the scientific name of the red-banded cleaner shrimp?Stenopus Hispidus
- 55What is the scientific name of the American Lobster?Homarus Americanus
- 56What is the scientific name of the spiny lobster?Panulirus argus
- 57What is the scientific name of the fiddler crab?Uca
- 58What is the scientific name of the ghost crab?Ocypode Quadrata
- 59What is the cheliped used for?Breaking through the shell of the prey
- 60Why do hermit crabs have to live in the shells of other animals?Their exoskeleton lacks calcium, and its abdomen is soft and vulnerable when not with a shell
- 61What is the name of the pairs of feeding appendages?Maxillae
- 62How does the sand crab burrow into the sand?Rapid motions of the walking legs and uropods allow them to hide under the sand
- 63What is the cephalothorax?Carapace that holds entire body
- 64What are uropods?Posterior appendages that help with movement
- 65What are the hooks on the end of the walking legs on the hermit crab for?Holds the hermit crab in its shell
- 66How does the American lobster swim?By flipping their tail forward, propelling them backwards
- 67Describe reproduction in the American lobsterMale releases sperm onto the newly-molted female. In spawning, the eggs flow from an opening to the swimmerets.
- 68Instead of claws, what do the spiny lobsters have?Spines
- 69What is a common name for the spiny lobster?Crawfish
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- Marine Bio Flashcards on Crustacean, created by Delanie on 06/04/2015.
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- Delanie
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