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Bio 112 Lab test (spiders)

Terms

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1st hole is the mouth in a _________
protostomes
annelids, mollusca, and arthropods are considered... protostomes or deuterostomes
protostomes
1st hole is the anus is______________
deuterostomes
What 3 animal phyla are considered deuterostomes
echinoderms hemichordata chordata
Protostomes and deuterostomes are _____________
coelomates
coelomates possess a _____
coelom = body cavity
What phylum are the annelids in
phylum annelida
What phylum are the mollusks in
phylum mollusca
What class are the Oligochaetes in
Class Oligochaeta (OLIGO= few, CHAETES = bristles)
What class are the polychaetes in
Class polychaeta
What class are the leeches in
Class Hirudinea
Leeches are in what phylum
Phylum Annelida
What phylum are the oligochaetes and polychates in
Phylum Annelida
Bivalves are in what class
Class Bivalvia
What phylum are bivalves in
mollusca
What class are snails, slugs, and nudibranches in
class gastropoda (gastro=gut) PHYLUM MOLLUSCA
What class and phylum are squids, octopus, nautiluses in
Class CEPHALOPODA PhylumMollusca
Arthropods are in what phylum
phylum arthropoda
Crustaceans are in what phylum
phylum arthropoda
insects are in what phylum
phylum arthropoda
Centipedes and Millipedes are in what phylum
phylum arthropoda
Spiders, horseshoe crabs, scorpions, ticks are in what phylum
phylum arthropoda
What type of circulatory system does the annelids have
closed
Annelids were the first animals to evolve________ (which is EXTERNAL AND INTERNAL)
segmentation
Compartments within each segments (in coelom) is called
Septa
Septa is lined with
peritoneum
a fleshy, segmental outgrowth on polychaetes is called
parapodia
How do leeches ensure the continued blood flow on their host?
The secrete an anticoagulant into the wound to prevent clotting
What kind of symmetry does molluscans have
head and unique body plan, gut (complete)
What kind of circulatory system does molluscans have
open
2 characteristics that distinguish mollusks
a ventral, muscular foot mantle
What type of digestive system does molluscans have
complete
What is the oldest part of the valve in a mussel
umbo
What part of the mussel secretes the shell
mantle
What is a glochidium?
larvae of a bivalve
Where does the glochidium spend their first few months of life
in the gills of the bivalve
What is a slime gland ( In snails)
the front of the foot that secretes mucous
Many snails exhibit PHOTOTAXIS. What is that
when an entire organism tends to move in relation to light
What is the purpose of the radula (in snails)
tongue-like ....used to obtain food
What is the function of the siphon on a squid
to move the squid around
What is the support structure in the body of the arthropods
exoskeleton of chitin
What is chitin
a structural polysacchride
The body of arthropods are divided into 3 regions. what are they called
head thorax abdomen
The coelom of the arthropod is filled with blood, or ___________ and is connected to a(n) circulatory system
hemolymph open
The hard protective layer of exoskeleton in crustaceans is called
carapace
Insects were the 1st to
fly
the tiny openings into the trachea are called ________ (in grasshoppers)
spiracles
What is compound eyes made up of
3 simple eyes
What are the simple eyes called
ocelli
a pair of legs used for killing prey in centipedes and millipedes
poison claws
How many legs are per segment on the centipedes
1
How many legs per segment are per millipede
2
The spiders body consist of ______________ and ________________
cephalothorax abdomen
Which pair of appendages in spiders bears the fangs
the first pair

Deck Info

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