TAMU BIO 112 REAL ACTUAL EXAM 2 WITH
CORRECT ANSWERS 2025
What is the name of the structure that helps
hold a clam shell closed? - answer-
adductor muscles
what is the external reproductive structure
in male Ascaris? - answer-Spicule
Define animal - answer-multicellular
organisms and heterotrophic
what is the difference between a
protostome and a deuterostome? - answer-
P-Mouth develops before anus, spiral and
determinate
D-Anus develops before mouth, radial and
indeterminate
,most phyla of animals are classified in
which three clades of bilateral animals? -
answer-lophotrochozoans, ecdyzozoan,
dueterosomes
what phylum are lophotrochozoans? -
answer-Platyhelminthes, Annelida,
mollusca
what phylum are ecdysozoa? - answer-
Nematoda, Arthropoda
What phylum are Dueterostomia? - answer-
Chordata and Echinodermata
what type of tissue organization do
sponges posses? - answer-ablastic
, How does gas exchange occur in a
planarian? - answer-diffuses through its
body
What is the major support system of the
Lancelet? - answer-Notochord
Why is the notochord advantageous in
Chordates? - answer-Forms the skeleton;
precursor element
what is an invertebrate? - answer-animals
that do not have a vertebral column
Porifera - answer-Asymmetrical,
acoelomate, ablastic, central cavity,
aquatic
CORRECT ANSWERS 2025
What is the name of the structure that helps
hold a clam shell closed? - answer-
adductor muscles
what is the external reproductive structure
in male Ascaris? - answer-Spicule
Define animal - answer-multicellular
organisms and heterotrophic
what is the difference between a
protostome and a deuterostome? - answer-
P-Mouth develops before anus, spiral and
determinate
D-Anus develops before mouth, radial and
indeterminate
,most phyla of animals are classified in
which three clades of bilateral animals? -
answer-lophotrochozoans, ecdyzozoan,
dueterosomes
what phylum are lophotrochozoans? -
answer-Platyhelminthes, Annelida,
mollusca
what phylum are ecdysozoa? - answer-
Nematoda, Arthropoda
What phylum are Dueterostomia? - answer-
Chordata and Echinodermata
what type of tissue organization do
sponges posses? - answer-ablastic
, How does gas exchange occur in a
planarian? - answer-diffuses through its
body
What is the major support system of the
Lancelet? - answer-Notochord
Why is the notochord advantageous in
Chordates? - answer-Forms the skeleton;
precursor element
what is an invertebrate? - answer-animals
that do not have a vertebral column
Porifera - answer-Asymmetrical,
acoelomate, ablastic, central cavity,
aquatic
