Bio 322 Final Exam Questions and
Answers 100% Pass
Phylum Arthropoda Subphylums (4) - ✔✔Subphylum Trilobitomorpha
Subphylum Uniramia
Subphylum Crustacea
Subphylum Chelicerata
Which is the largest phylum in the Animal Kingdom? - ✔✔Phylum
Arthropoda
Phylum Arthropoda has _________ symmetry and _______ development. -
✔✔bilateral; triploblastic
Arthropods are _______ both internally and externally. - ✔✔segmented
tagmosis - ✔✔fusion of segments into functional units
chitin - ✔✔Polysaccharide found in arthropod exoskeletons (rigid)
Arthropods have ______ appendages. - ✔✔jointed
1
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,ommatidia - ✔✔compound eyes (phylum Arthropoda)
Arthropods have a ______ body plan. - ✔✔coelomate
coelomate - ✔✔body cavity lined by tissue completely derived from
mesoderm
Arthropods have a(n) _____ circulatory system where blood flows into
______. - ✔✔open; sinuses
hemocoel - ✔✔blood cavity
Arthropods have a ________ and ____-_______ gut. - ✔✔complete; well-
developed
T/F. Arthropods have functional cilia. - ✔✔False. Cilia are absent except in
sperm in some groups.
What are cilia used as in some arthropods? - ✔✔neuroreceptors
Some arthropod sperm isn't ______. - ✔✔mobile
ecdysis - ✔✔process of molting
gonochoristic - ✔✔separate sexes
another term for dioecious used in Phylum Arthropoda
2
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, Subphylum Trilobitomorpha - ✔✔Trilobites
T/F. The trilobites are extant. - ✔✔False. They are extinct.
extant - ✔✔still in existence
extinct - ✔✔no longer in existence
The trilobites lived in _______ environments. - ✔✔marine
pygidium - ✔✔posterior end
Trilobites had a distinct _____ fused to the _______. - ✔✔cephalon (head);
pygidium
Trilobites had two well-developed ________ ____. - ✔✔compound eyes
Trilobites had ______ pairs of appendages. - ✔✔4
mortality plate - ✔✔phenomenon when many organisms fossilize at the
same time, typically due to a catastrophic event
thorax - ✔✔abdomen
The trilobites were composed of _____ lobes. - ✔✔3
Subphylum Uniramia - ✔✔centipedes, millipedes, insects
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Answers 100% Pass
Phylum Arthropoda Subphylums (4) - ✔✔Subphylum Trilobitomorpha
Subphylum Uniramia
Subphylum Crustacea
Subphylum Chelicerata
Which is the largest phylum in the Animal Kingdom? - ✔✔Phylum
Arthropoda
Phylum Arthropoda has _________ symmetry and _______ development. -
✔✔bilateral; triploblastic
Arthropods are _______ both internally and externally. - ✔✔segmented
tagmosis - ✔✔fusion of segments into functional units
chitin - ✔✔Polysaccharide found in arthropod exoskeletons (rigid)
Arthropods have ______ appendages. - ✔✔jointed
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,ommatidia - ✔✔compound eyes (phylum Arthropoda)
Arthropods have a ______ body plan. - ✔✔coelomate
coelomate - ✔✔body cavity lined by tissue completely derived from
mesoderm
Arthropods have a(n) _____ circulatory system where blood flows into
______. - ✔✔open; sinuses
hemocoel - ✔✔blood cavity
Arthropods have a ________ and ____-_______ gut. - ✔✔complete; well-
developed
T/F. Arthropods have functional cilia. - ✔✔False. Cilia are absent except in
sperm in some groups.
What are cilia used as in some arthropods? - ✔✔neuroreceptors
Some arthropod sperm isn't ______. - ✔✔mobile
ecdysis - ✔✔process of molting
gonochoristic - ✔✔separate sexes
another term for dioecious used in Phylum Arthropoda
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, Subphylum Trilobitomorpha - ✔✔Trilobites
T/F. The trilobites are extant. - ✔✔False. They are extinct.
extant - ✔✔still in existence
extinct - ✔✔no longer in existence
The trilobites lived in _______ environments. - ✔✔marine
pygidium - ✔✔posterior end
Trilobites had a distinct _____ fused to the _______. - ✔✔cephalon (head);
pygidium
Trilobites had two well-developed ________ ____. - ✔✔compound eyes
Trilobites had ______ pairs of appendages. - ✔✔4
mortality plate - ✔✔phenomenon when many organisms fossilize at the
same time, typically due to a catastrophic event
thorax - ✔✔abdomen
The trilobites were composed of _____ lobes. - ✔✔3
Subphylum Uniramia - ✔✔centipedes, millipedes, insects
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
