BIO 322 FINAL EXAM 2025,PRACTICE
QUESTIONS WITH ACTUAL ANSWERS FROM A
VERIFIED SOURCE.
Phylum Arthropoda Subphylums (4) - ANSWERS-Subphylum
Trilobitomorpha
Subphylum Uniramia
Subphylum Crustacea
Subphylum Chelicerata
Which is the largest phylum in the Animal Kingdom? - ANSWERS-
Phylum Arthropoda
Phylum Arthropoda has _________ symmetry and _______ development. -
ANSWERS-bilateral; triploblastic
Arthropods are _______ both internally and externally. - ANSWERS-
segmented
tagmosis - ANSWERS-fusion of segments into functional units
chitin - ANSWERS-Polysaccharide found in arthropod exoskeletons (rigid)
Arthropods have ______ appendages. - ANSWERS-jointed
ommatidia - ANSWERS-compound eyes (phylum Arthropoda)
Arthropods have a ______ body plan. - ANSWERS-coelomate
coelomate - ANSWERS-body cavity lined by tissue completely derived from
mesoderm
,Arthropods have a(n) _____ circulatory system where blood flows into
______. - ANSWERS-open; sinuses
hemocoel - ANSWERS-blood cavity
Arthropods have a ________ and ____-_______ gut. - ANSWERS-complete;
well-developed
T/F. Arthropods have functional cilia. - ANSWERS-False. Cilia are absent
except in sperm in some groups.
What are cilia used as in some arthropods? - ANSWERS-neuroreceptors
Some arthropod sperm isn't ______. - ANSWERS-mobile
ecdysis - ANSWERS-process of molting
gonochoristic - ANSWERS-separate sexes
another term for dioecious used in Phylum Arthropoda
Subphylum Trilobitomorpha - ANSWERS-Trilobites
T/F. The trilobites are extant. - ANSWERS-False. They are extinct.
extant - ANSWERS-still in existence
extinct - ANSWERS-no longer in existence
The trilobites lived in _______ environments. - ANSWERS-marine
pygidium - ANSWERS-posterior end
Trilobites had a distinct _____ fused to the _______. - ANSWERS-cephalon
(head); pygidium
Trilobites had two well-developed ________ ____. - ANSWERS-compound
eyes
, Trilobites had ______ pairs of appendages. - ANSWERS-4
mortality plate - ANSWERS-phenomenon when many organisms fossilize
at the same time, typically due to a catastrophic event
thorax - ANSWERS-abdomen
The trilobites were composed of _____ lobes. - ANSWERS-3
Subphylum Uniramia - ANSWERS-centipedes, millipedes, insects
Subphylum Uniramia Classes (2) - ANSWERS-Class Myrapodia
Class Insecta (Hexapoda)
Uniramians possess ________ to eat. - ANSWERS-mandibles
mandibles - ANSWERS-whole limb jaws with a single biting surface at the
tip
Uniramians have _______ appendages. - ANSWERS-multiarticulate
multiarticulate - ANSWERS-jointed
Uniramians have a _______ system for gas exchange. - ANSWERS-tracheal
Uniramians have a ______ coating the inside of the tracheal system and
________ that lead into the tracheal system from the outside. - ANSWERS-
cuticle; spiracles
spiracles - ANSWERS-Openings in the exoskeleton leading to gas
exchange system
malphighian tubules - ANSWERS-main excretory organ in arachnids &
insects.
Uniramians have _______ eyes with ______. - ANSWERS-compound; ocelli
QUESTIONS WITH ACTUAL ANSWERS FROM A
VERIFIED SOURCE.
Phylum Arthropoda Subphylums (4) - ANSWERS-Subphylum
Trilobitomorpha
Subphylum Uniramia
Subphylum Crustacea
Subphylum Chelicerata
Which is the largest phylum in the Animal Kingdom? - ANSWERS-
Phylum Arthropoda
Phylum Arthropoda has _________ symmetry and _______ development. -
ANSWERS-bilateral; triploblastic
Arthropods are _______ both internally and externally. - ANSWERS-
segmented
tagmosis - ANSWERS-fusion of segments into functional units
chitin - ANSWERS-Polysaccharide found in arthropod exoskeletons (rigid)
Arthropods have ______ appendages. - ANSWERS-jointed
ommatidia - ANSWERS-compound eyes (phylum Arthropoda)
Arthropods have a ______ body plan. - ANSWERS-coelomate
coelomate - ANSWERS-body cavity lined by tissue completely derived from
mesoderm
,Arthropods have a(n) _____ circulatory system where blood flows into
______. - ANSWERS-open; sinuses
hemocoel - ANSWERS-blood cavity
Arthropods have a ________ and ____-_______ gut. - ANSWERS-complete;
well-developed
T/F. Arthropods have functional cilia. - ANSWERS-False. Cilia are absent
except in sperm in some groups.
What are cilia used as in some arthropods? - ANSWERS-neuroreceptors
Some arthropod sperm isn't ______. - ANSWERS-mobile
ecdysis - ANSWERS-process of molting
gonochoristic - ANSWERS-separate sexes
another term for dioecious used in Phylum Arthropoda
Subphylum Trilobitomorpha - ANSWERS-Trilobites
T/F. The trilobites are extant. - ANSWERS-False. They are extinct.
extant - ANSWERS-still in existence
extinct - ANSWERS-no longer in existence
The trilobites lived in _______ environments. - ANSWERS-marine
pygidium - ANSWERS-posterior end
Trilobites had a distinct _____ fused to the _______. - ANSWERS-cephalon
(head); pygidium
Trilobites had two well-developed ________ ____. - ANSWERS-compound
eyes
, Trilobites had ______ pairs of appendages. - ANSWERS-4
mortality plate - ANSWERS-phenomenon when many organisms fossilize
at the same time, typically due to a catastrophic event
thorax - ANSWERS-abdomen
The trilobites were composed of _____ lobes. - ANSWERS-3
Subphylum Uniramia - ANSWERS-centipedes, millipedes, insects
Subphylum Uniramia Classes (2) - ANSWERS-Class Myrapodia
Class Insecta (Hexapoda)
Uniramians possess ________ to eat. - ANSWERS-mandibles
mandibles - ANSWERS-whole limb jaws with a single biting surface at the
tip
Uniramians have _______ appendages. - ANSWERS-multiarticulate
multiarticulate - ANSWERS-jointed
Uniramians have a _______ system for gas exchange. - ANSWERS-tracheal
Uniramians have a ______ coating the inside of the tracheal system and
________ that lead into the tracheal system from the outside. - ANSWERS-
cuticle; spiracles
spiracles - ANSWERS-Openings in the exoskeleton leading to gas
exchange system
malphighian tubules - ANSWERS-main excretory organ in arachnids &
insects.
Uniramians have _______ eyes with ______. - ANSWERS-compound; ocelli
