Shared Flashcard Set

Details

Cabrillo Bio 1B Lab Exam 2
Arthropods 1
29
Biology
Undergraduate 1
11/07/2007

Additional Biology Flashcards

 


 

Cards

Term
Arthropod characteristics
Definition
Segmented body; dorsal heart and ventral nervous system; Exoskeleton of chitin; Open circulatory system with hemocoel
Term
Ecdysozoans
Definition
Animals that molt
Term
1) Jointed legs
2) Compound eyes
Definition
The two main synapomorphies of arthropods
Term
Onychophora
Definition
Sister clade to Arthropods and Annelids, sharing traits of both
Term
1) segmented bodies
2) paired appendages
3) dorsal vessel or heart
4) ventral nerve cord
Definition
Four shared features of Arthropods and Annelids
Term
Chitin, in cross-linked protein matrix, reinforced with calcium salts in aquatic species
Definition
Exoskeleton structure of arthropods
Term
1)Cuticle separates from epidermis
2)Molting fluid dissolves inner cuticle and builds new one
3)Body expands within inner cuticle by taking in water or air, fracturing old cuticle
4)Cross-linking proteins harden cuticle
5)Animal grows into new shell,
Definition
Stages of metamorphosis
Term
Kinorynchs, Loriciferans, and Priapulans
Definition
Side clades of arthropods, live in the spaces between grains of sand and mud
Term
Cephaloryncha
Definition
Benthic clade of kinorynchs, loricipherans, and priapulans
Term
Tardigrada
Definition
"Water bears"; can dry out and remain dormant for years; Feed on plant juices with a piercing mouth; Females lay their eggs inside molted exoskeleton
Term
Trilobita
Definition
Trilobites; Three-lobed exoskeleton; Calcite compound eyes; some had spines; Extinct for 245 my
Term
Ommatidia
Definition
Individual light sensors in compound eyes
Term
Chelicera
Definition
Modified front legs used for feeding
Term
Chelicerates
Definition
Clade made up of Merostomata (Horseshoe crabs and Sea scorpions)and Pycnogonidia (Sea Spiders)
Term
Pycnogonidia
Definition
Sea Spiders; Gonads and gastrovascualr cavity in legs; External digestion, like land spiders
Term
Merostomata
Definition
Horseshoe crabs and Eurypterid Sea Scorpions; The only chelicerates with compound eyes; Book gills
Term
Ostracoda
Definition
Crustacean; bivalve-like shell; Nauplius larval stage; Seed Shrimp
Term
Branchiopoda
Definition
"Gill foot" crustacean; Brine shrimp (sea monkeys are larvae) and Daphnia; Eggs can survive dessication for hundreds of years; Nauplius larvae
Term
Daphina
Definition
Clade Branchiopoda; Evolved to adapt to more toxic cyanobacteria; Eggs survive dessication for long periods; Migrate in response to UV levels; Polymorphic by season; Parthenogenetic reporduction
Term
Diapause
Definition
A long resting state, often in eggs of branchiopods, surviving dessication for up to hundreds of years.
Term
Parthenogenesis
Definition
Asexual reproduction by females
Term
Cirripedia
Definition
"Wispy-feet" crustaceans; Barnacles and Sacculina; Nauplius larvae
Term
Barnacles
Definition
Cirripedia; Hermaphrodites; Longest penis size in relation to body size; grow on rocks, wood, and whale skin
Term
Sacculina
Definition
Cirripedia; Nauplius stage, then cyprid larva that attaches to a crab; Parasitizes crab and grows out of abdomen; Controls host's hormones
Term
Copepoda
Definition
"Oar-foot" Crustacean; Nauplius stage; 1˚ consumers of phytoplankton; Migrate to the surface at night, retreat to darker deep by day
Term
Isopoda
Definition
"Equal feet" crustaceans; Marine species parasitize like ticks, on fish gills or tongue; Pillbugs and Sowbugs are the only terrestrial crustaceans, and breathe with gills
Term
Amphipoda
Definition
"Two-feet" crustaceans; sand fleas have back legs for hopping and are laterally compressed; Skeleton shrimp are microscopic, ambush prey with raptorial appendages; Whale lice live among barnacles and eat flaking skin
Term
Decapoda
Definition
"ten leg" crustacean; Crabs and lobsters; Krill
Term
Stomatopoda
Definition
Crustaceans; Mantis shrimp; have either spears or clubs for spearing or crushing or breaking fish tanks
Supporting users have an ad free experience!