5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
Bio 172 UH Manoa (2025) ACTUAL EXAM
(TESTING REAL EXAM QUESTIONS) AND
VERIFIED ANSWERS (MULTIPLE CHOICES)
|COMPLETE SOLUTIONS |A+ GRADED |100%
CORRECT!!
Save
Terms in this set (161)
Endoderm Three embryonic layers. Endoderm being the inner
Mesoderm most layer and Ectoderm being the outermost.
Ectoderm
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 1/53
,5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
What traits are present in B) presence of endoderm, mesoderm, and ectoderm
the early stages of
development that would
not allow you to
determine if the animal is a
protostome or
deuterostome?
A) Radial Cleavage
B) presence of endoderm,
mesoderm, and ectoderm
c) Coelom formed by
splitting the mesodermal
mass
D) Anus forms from
blastopore
E) The developmental fate
of each embryonic cell is
fully determined
Coelom Internal body cavity derived from the mesoderm
The opening that develops into the mouth in
Blastopore
protostomes and the anus in deuterostomes
Can be split on multiple planes and be symmetrical
Radial Symmetry (Circle)
Ex. Adult Cnidaria
Will only be symmetrical if split on one line, all others
Bilateral symmetry will not be symmetrical (humans)
Ex. Nematoda
Division of the body into two halves divides it into two
Rotational symmetry copies of the same half with one rotated 180 degrees.
Ex. Ctenophora
No symmetry in any split
Asymmetry
Ex. Porifera
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 2/53
,5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
Which is not a A) Opisthokonta
monophyletic group?
A) Opisthokonta
B) Bilateria
C) Cnidaria
D) Ctenophora
E) Porifera
Which is true about animal C) Several extant phyla first appear in the fossil record
evolutionary history? from the Cambrian Period
A) the Cambrian explosion
led to the appearance of
the Ediacaran biota
B) the Cambrian explosion
occurred around 100 MYA
C) several extant phyla
first appear in the fossil
record from the Cambrian
period
D) many fossils dating
from the Cambrian
explosion represent
species that survive today
E) the Cambrian explosion
was caused by a rapid
increase in Earth's
atmospheric nitrogen
Ediacaran Period before Cambrian period, about 635-543 MYA
Cambrian the most rapid evolution of new animal phyla and
Explosion/Period animal diversity in Earth's history about 542-488 MYA
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 3/53
, 5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
Which of the following is D) Alternation of generations between diploid and
not typical of most haploid lifestages
animals?
A) Specialized tissues
B) a stage of development
called gastrulation
C) possession of hox
genes
D) alternation of
generations between
diploid and haploid
lifestages
E) food obtained via
heterotrophy
Responsible for the general body pattern of most
Hox Genes
animals
results in the formation of the primitive gut
Gastrulation (archenteron) or digestive cavity and the formation of
the embryonic layers.
Organogenesis formation of organs
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 4/53
Bio 172 UH Manoa (2025) ACTUAL EXAM
(TESTING REAL EXAM QUESTIONS) AND
VERIFIED ANSWERS (MULTIPLE CHOICES)
|COMPLETE SOLUTIONS |A+ GRADED |100%
CORRECT!!
Save
Terms in this set (161)
Endoderm Three embryonic layers. Endoderm being the inner
Mesoderm most layer and Ectoderm being the outermost.
Ectoderm
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 1/53
,5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
What traits are present in B) presence of endoderm, mesoderm, and ectoderm
the early stages of
development that would
not allow you to
determine if the animal is a
protostome or
deuterostome?
A) Radial Cleavage
B) presence of endoderm,
mesoderm, and ectoderm
c) Coelom formed by
splitting the mesodermal
mass
D) Anus forms from
blastopore
E) The developmental fate
of each embryonic cell is
fully determined
Coelom Internal body cavity derived from the mesoderm
The opening that develops into the mouth in
Blastopore
protostomes and the anus in deuterostomes
Can be split on multiple planes and be symmetrical
Radial Symmetry (Circle)
Ex. Adult Cnidaria
Will only be symmetrical if split on one line, all others
Bilateral symmetry will not be symmetrical (humans)
Ex. Nematoda
Division of the body into two halves divides it into two
Rotational symmetry copies of the same half with one rotated 180 degrees.
Ex. Ctenophora
No symmetry in any split
Asymmetry
Ex. Porifera
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 2/53
,5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
Which is not a A) Opisthokonta
monophyletic group?
A) Opisthokonta
B) Bilateria
C) Cnidaria
D) Ctenophora
E) Porifera
Which is true about animal C) Several extant phyla first appear in the fossil record
evolutionary history? from the Cambrian Period
A) the Cambrian explosion
led to the appearance of
the Ediacaran biota
B) the Cambrian explosion
occurred around 100 MYA
C) several extant phyla
first appear in the fossil
record from the Cambrian
period
D) many fossils dating
from the Cambrian
explosion represent
species that survive today
E) the Cambrian explosion
was caused by a rapid
increase in Earth's
atmospheric nitrogen
Ediacaran Period before Cambrian period, about 635-543 MYA
Cambrian the most rapid evolution of new animal phyla and
Explosion/Period animal diversity in Earth's history about 542-488 MYA
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 3/53
, 5/15/25, 11:20 AM Bio 172 UH Manoa (2025) ACTUAL EXAM (TESTING REAL EXAM QUESTIONS) AND VERIFIED ANSWERS (MULTIPLE CHOIC…
Which of the following is D) Alternation of generations between diploid and
not typical of most haploid lifestages
animals?
A) Specialized tissues
B) a stage of development
called gastrulation
C) possession of hox
genes
D) alternation of
generations between
diploid and haploid
lifestages
E) food obtained via
heterotrophy
Responsible for the general body pattern of most
Hox Genes
animals
results in the formation of the primitive gut
Gastrulation (archenteron) or digestive cavity and the formation of
the embryonic layers.
Organogenesis formation of organs
https://quizlet.com/1044322426/bio-172-uh-manoa-2025-actual-exam-testing-real-exam-questions-and-verified-answers-multiple-choices-complete-s… 4/53
