BIO 172 UH MANOA EXAM 2 WITH
100% CORRECT ANSWERS 2026
Animals correct answer Multicellular eukaryotes
Heterotrophs: Ingest their food
Lack Cell Walls
Body held together by structural proteins such as collagen
Collagen correct answer Make up connective tissues (fibers)
Flexible and high tensile (stretching)
Skin correct answer Dense irregular arrangement of collagen
Ligament correct answer Collagen arranged in sheets
(Connects Bones)
Tendon correct answer Cable-like arrangement of collagen
(Connects muscle to bone)
How do animals reproduce? Which stage is dominant in life cycle
correct answer Sexually
Diploid
Zygote correct answer Fertilized egg
,(Sperm+Egg=Zygote)
Undergoes rapid cell division called cleavage
Cleavage correct answer The process of cytokinesis in animal
cells, characterized by pinching of the plasma membrane;
specifically, the succession of rapid cell divisions without growth
during early embryonic development that converts the zygote
into a ball of cells
Ectoderm correct answer outermost germ layer; produces
sense organs, nerves, and outer layer of skin
Indian pangolin correct answer Manis crassicaudata example
given
Tissues correct answer Collections of specialized cells with a
common function, isolated from other tissues by membranous
layers
Germ Layers correct answer Give rise to tissues and organs of
animal embryo
Gastrulation correct answer developmental process in which
three distinct cell layers form in an embryo: the endoderm,
mesoderm, and ectoderm
gastrula correct answer a stage of embryonic development
characterized by the differentiation of the cells into the ectoderm
and endoderm germ layers and by the formation of the
archenteron
,Mesoderm correct answer middle germ layer; develops into
muscles, and much of the circulatory, reproductive, and excretory
systems
Blastula correct answer Cell that has undergone many cell
cleavages
Hollow call of cells mark the end of cleavage stage during early
embryonic development.
Bilaterians correct answer All Multicellular animals other than
sponges and cnidarians
Exhibit bilateral symmetry and cephalization
Deuterostome correct answer Cell proliferation by radial
cleavage
Coelom forms from outpocket of the middle tissue germ layer
Initial opening of gut becomes the anus
Class: Trematoda correct answer -Flukes
-All Parasitic, usually with a mollusc and a vertebrate host
-Affect 200 million people
-Symptoms: pain, anemia, dysentery, and liver damage
Phylum: Annelida correct answer -Have a true coelom and a
closed circulatory system
-Body plan exhibits distinct repetition of segments: Metameric
, -Split into two major clades: Errantia and Sedentaria
Endoderm correct answer the inner germ layer that develops
into the lining of the digestive and respiratory systems
Diploblastic correct answer Animals that exhibit both ectoderm
and endoderm in the embryo
(Corals, jellyfish)
Triploblastic correct answer Animals that have intervening
Mesoderm layer (bilaterians)
Instars correct answer Successive life stages between molts of
insects
Cephalization correct answer Organization of senses and
locomotion toward head region
Larva correct answer Sexually immature and anatomically
distinct from the adult, undergoes metamorphosis
Juvenile correct answer Resembles an adult, but not sexually
mature
Sacculina kentrogon life stage correct answer Injects cells into
crab host
Develop into parasitic network of tissues all over crab
Crabs think they are their eggs and tend to it
100% CORRECT ANSWERS 2026
Animals correct answer Multicellular eukaryotes
Heterotrophs: Ingest their food
Lack Cell Walls
Body held together by structural proteins such as collagen
Collagen correct answer Make up connective tissues (fibers)
Flexible and high tensile (stretching)
Skin correct answer Dense irregular arrangement of collagen
Ligament correct answer Collagen arranged in sheets
(Connects Bones)
Tendon correct answer Cable-like arrangement of collagen
(Connects muscle to bone)
How do animals reproduce? Which stage is dominant in life cycle
correct answer Sexually
Diploid
Zygote correct answer Fertilized egg
,(Sperm+Egg=Zygote)
Undergoes rapid cell division called cleavage
Cleavage correct answer The process of cytokinesis in animal
cells, characterized by pinching of the plasma membrane;
specifically, the succession of rapid cell divisions without growth
during early embryonic development that converts the zygote
into a ball of cells
Ectoderm correct answer outermost germ layer; produces
sense organs, nerves, and outer layer of skin
Indian pangolin correct answer Manis crassicaudata example
given
Tissues correct answer Collections of specialized cells with a
common function, isolated from other tissues by membranous
layers
Germ Layers correct answer Give rise to tissues and organs of
animal embryo
Gastrulation correct answer developmental process in which
three distinct cell layers form in an embryo: the endoderm,
mesoderm, and ectoderm
gastrula correct answer a stage of embryonic development
characterized by the differentiation of the cells into the ectoderm
and endoderm germ layers and by the formation of the
archenteron
,Mesoderm correct answer middle germ layer; develops into
muscles, and much of the circulatory, reproductive, and excretory
systems
Blastula correct answer Cell that has undergone many cell
cleavages
Hollow call of cells mark the end of cleavage stage during early
embryonic development.
Bilaterians correct answer All Multicellular animals other than
sponges and cnidarians
Exhibit bilateral symmetry and cephalization
Deuterostome correct answer Cell proliferation by radial
cleavage
Coelom forms from outpocket of the middle tissue germ layer
Initial opening of gut becomes the anus
Class: Trematoda correct answer -Flukes
-All Parasitic, usually with a mollusc and a vertebrate host
-Affect 200 million people
-Symptoms: pain, anemia, dysentery, and liver damage
Phylum: Annelida correct answer -Have a true coelom and a
closed circulatory system
-Body plan exhibits distinct repetition of segments: Metameric
, -Split into two major clades: Errantia and Sedentaria
Endoderm correct answer the inner germ layer that develops
into the lining of the digestive and respiratory systems
Diploblastic correct answer Animals that exhibit both ectoderm
and endoderm in the embryo
(Corals, jellyfish)
Triploblastic correct answer Animals that have intervening
Mesoderm layer (bilaterians)
Instars correct answer Successive life stages between molts of
insects
Cephalization correct answer Organization of senses and
locomotion toward head region
Larva correct answer Sexually immature and anatomically
distinct from the adult, undergoes metamorphosis
Juvenile correct answer Resembles an adult, but not sexually
mature
Sacculina kentrogon life stage correct answer Injects cells into
crab host
Develop into parasitic network of tissues all over crab
Crabs think they are their eggs and tend to it
