Lab 8/9 - Arthropoda (Quiz) Flashcards
Arthropods are _____blastic, _____stomes, and _____elomates
triploblastic, protostomes, eucoelomates
Arthropods are coelomates, but also…(2)
- have a reduced coelom
- have a hemocoel filled with hemolymph
Arthropods have a segmented body with _____
tagmata, tagmatization
Arthropods have an exoskeleton made of _____
chitin
Arthropods have what kind of circulatory system?
open
members of Chelicerata have what special respiratory structures? (2)
book gills or book lungs
members of Crustacea have what special respiratory structure?
just gills
what kind of digestive system do members of Arthropoda have?
compelte
what kind of digestion do members of Cirripedia have?
filter feeding
what kind of digestion do members of Chelicerata have?
some digestion is external
what special excretion structures do members of Crustacea have?
green glands
what special excretion structures do members of Arachnida have?
Malpighian tubules
what nerve structures do members of Arthropoda have? (2)
- ventral nerve cord
- ganglion
what is special about the muscular system of Arthropods?
they have striated muscles
tagmatization
a type of metamerism; specialization of several metameres to work together to perform a specific function
what is a tagmata?
a group of specialized metameres
ecdysis
process of removing the existing exoskeleton
what is the solution to e rigid exoskeleton?
to divide it into plates over the body
reproduction: Cirripedia
monoecious
reproduction: others
dioecious
development: Crustacea (2)
nauplius larva, indirect development
development: Merostomata
indirect development
development: Arachnida
direct development
five subphyla of Arthropoda
- Trilobitomorpha
- Chelicerata
- Crustacea
- Myriapoda
- Hexapoda
Subphylum Trilobitomorpha Class…
Trilobita (trilobites)
Subphylum Chelicerata Classes (2)
- Merostomata (horseshoe crabs)
- Arachnica (spides, ticks, mites, scorpions)
members of Class Merostomata are….
horseshoe crabs
Members of Class Arachnida are…(5)
- scorpions
- spiders
- ticks
- mites
- daddy long legs
Subphylum Crustacea classes…(4)
- Branchiopoda (“sea monkeys”
- Copepoda (copepods)
- Cirripedia (barnacles)
- Malacostraca (shrimp, crab, lobster, amphipod, rollypolies)
members of Class Branchiopoda are…(2)
- sea monkeys
- daphnia
members of Class Copepoda are…
copepods
Members of Class Cirripedia are….
barnacles
members of Class Malacostraca are…(5)
- shrimp
- crab
- lobster
- amphipod
- roly-polies
Name this specimen.
Subphylum Trilobitomorpha
Class Trilobita
what is an extinct group of arthropods covered?
Subphylum Trilobitomorpha
Class Trilobita
Subphylum Chelicerata have two tagmata…
- cephalothorax
- abdomen
Chelicerata: cephalothorax
for sensing, feeding, and locomotion
Chelicerata: abdomen
for digestion, excretion, reproduction, and respiration
chelicerae
mouth structures for feeding, pincers or fangs
do members of Chelicerata have antennae?
no
what are the front most legs of members of Chelicerata called?
pedipalps; usually for feeding
how many legs do members of Chelicerata have?
8 total, 4 pairs
what class has blue blood? what is the pigment?
Subphylum Chelicerata
Class Merostomata
hemocyanin
What is the figure pointing at?
a mouth surrounded by gnathobase
Merostomata: gnathobase (2)
first four pairs of walking legs, each modified near the base to form a toother food-grinding surface
Merostomata: eyes (2)
- two compound eyes
- one ocelli
How can you tell the difference between a male and female horseshoe crab?
the ‘boxing gloves’ as the first pedipalp signifies a male
Members of Class Arachnida, Subphylum Chelicerata are…(5)
- spiders
- scorpions
- harvestment
- ticks
- mites
what specialized breather structures do members of Subphylum Chelicerata, Class Arachnida have? (2)
book lungs and internal tube system called a tracheal system
How do members of Subphylum Chelicerata, Class Arachnida excrete waste?
Malpighian tubules
What kind of feeders are members of Subphylum Chelicerata, Class Arachnida?
Mostly carnivorous
Subphylum Crustacea consists of these Classes…(4)
- Brachiopoda
- Copepoda
- Cirripedia
- Malacostraca
Class Brachiopoda consists of…(2)
- sea monkeys
- daphnia
Class Copepoda consists of…
copepods
Class Cirripedia consists of…
barnacles
Class Malacostraca consists of…(5)
- shrimp
- crabs
- lobsters
- amphipods
- roly-polies
Members of Subphylum Crustacea have two tagmata…
- cephalothorax
- abdomen
in Subphylum Crustacea, the cephalothorax contains these structures…(3)
- two sets of antennae
- mouth parts
- periopods/pereiopods
periopods/pereiopods
five pairs of walking legs
in Subphylum Crustacea, the abdomen has these structures…(3)
- pleopods/swimmerets
- uropods
- telson
Subphylum Crustacea have biramous appendages meaning…
one for gills and one for attachment
Members of Subphylum Crustacea have what respiratory structures?
GILLS- even the land ones
in Class Branchiopoda, where are the gills found?
on the legs
Name these specimen.
Phylum Arthropoda
Subphylum Crustacea
Class Branchiopoda
What kind of lives do members of Class Copepoda live? (3)
- endoparasitic
- ectoparasitic
- freeliving
what eye structures do members of Class Copepoda have?
a single median eye
Name this specimen.
Phylum Arthropoda
Subphylum Crustacea
Class Copepoda
Briefly describe the Class Cirripedia lifecycle. (2)
- free swimming larvae
- sessile adults
what kind of feeding does Class Cirripedia use?
filter feeding
how do members of Class Cirripedia collect food?
they use Cirri
Name these specimen.
Phylum Arthropoda
Subphylum Crustacea
Class Cirripedia