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WSU CARLOYE BIO 106 EXAM 3 QUESTIONS AND ANSWERS 2024
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WSU CARLOYE BIO 106 EXAM 3 QUESTIONS AND ANSWERS 2024
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WSU CARLOYE BIO 106 EXAM 3What are somites? what strcutures do they give rise to? - ANSWERS-Blocks of
mesodermal tissue, they give rise to the vertabrea and muscles.
What are the four membranes of amniotic eggs - ANSWERS--Allantois
-Amnion
-Chorion
-Yolk Sac
What is the function of each compartment? - ANSWERS-Allantois: disposable sac
for metabolic waste produced by embryo
Amnion:Protects the embryo in a fluid filled cavity that cushions against
mechanical shock.
Chorion: the Chorion and the allantois exchange gases between the embryo and
the air.
Yolk Sac: contains the "yolk" stock pile of nutrients.
Which phyla are included in the Amniotes? - ANSWERS-Chordata
Which animals rely on filter feeding? - ANSWERS-Sponges
,What two traits allowed the arthropods to diversify so much - ANSWERS-jointed
legs, segmentation
Give some examples of tagma in arthropods - ANSWERS-Sensory (head)
Locomotion(thorax)
Organ system (Digestion/Reproduction)(abdomen)
What is an arthropods exoskeleton made out of ? - ANSWERS-Chitin Protein
Explain what molting is - ANSWERS-Shedding the old exoskeleton and expanding
to a larger size before the new exoskeleton
What are the major groups of arthropods? - ANSWERS--Trilobites (all
extinct)(segmentation)
-Chelicerata(Spiders, Scorpions)(8Legs)
-Myriapods (Millipedes)(many legs)(mandibles
-Pancrustacea
-Crustacea(crabs)(10 legs)
-Insecta(insects)(6 legs)
Incomplete Metamorphosis - ANSWERS-larvae resemble adults; molt until they
reach maturity (with wings)
, Complete metamorphosis - ANSWERS-Larva stage looks entirely different from
adult stage; includes pupal stage
What are the three subgroups of Chordata (both scientific and common names
for two) - ANSWERS-Urochordates (Sea squirts), Cephalochordates (Lancelets),
Humans
Which are the "invertebrate" chordates? - ANSWERS-Urochordates,
Cephalochordates
what is it, what does it do, who has it, Spongocoel? - ANSWERS-Phylum Porifera,
large central cavity of the sponges, water enters through pores to this
what is it, what does it do, who has it, Osculum - ANSWERS-Porifera, Largest
central opening, water comes from the Spongocoel to the Osculum to the outside
world
what is it, what does it do, who has it, Choanocyte - ANSWERS-Porifera, creates
water flow and captures food, lines the channels of the sponges
what is. it, what does it do, who has it,Spicule - ANSWERS-Porifera, Scaffold of
sponges, gives them shape
what is it, what does it do, who has it, Cnidocyte - ANSWERS-cnidaria, explosive
cell containing one giant secretory organelle
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