Invertebrate Zoology Final Exam
Questions with Accurate Answers
Diploblastic animals lack a ________.
A. Endoderm
B. Mesoderm
C. Ectoderm
D. Dermatosome
E. None of the above - ANSWERSB. Mesoderm
The outermost layer of a triploblast is called ________.
A. Endoderm
B. Mesoderm
C. Ectoderm
D. Dermatosome
E. None of the above - ANSWERSC. Ectoderm
Humans are deuterostomes.
A. True
B. False - ANSWERSA. True
A term meaning nonmotile.
A. sessile
B. cilia
C. flagella
D. contractile vacuole
E. locomotion - ANSWERSA. sessile
A term meaning single-celled.
A. multicellular
B. monodentate
C. mononuclear
D. unicellular
E. acellular - ANSWERSD. unicellular
______ is the "universal solvent."
A. Acetone
B. Water
C. Gasoline
D. Kerosine
E. Bicarbonate - ANSWERSB. Water
,The term protostome means _____.
A. First gut
B. First anus
C. First mouth
D. Feet first
E. None of the above - ANSWERSC. First mouth
Deuterostomes are capable of forming twin offspring because:
A. Cells are programmed earlier in protostome development; Deuterostome cleavage is
indeterminate
B. Protostome cleavage is indeterminate
C. Protostome cells are much larger
D. Protostome cells are much more complex and are therefore special
E. All of the above - ANSWERSA. Cells are programmed earlier in protostome
development; Deuterostome cleavage is indeterminate
A group of taxa outside the group being studied, used to "root" the tree and imply the
direction of evolutionary changes.
A. outgroup
B. inside outgroup
C. ingroup
D. jacknife
E. polarity - ANSWERSA. outgroup
The principle stating that the least complex scenario leading to the development of a
certain trait is called ______.
A. parsimony
B. natural selection
C. polarity
D. cladogenesis
E. pleisiomorphy - ANSWERSA. parsimony
A group of organisms that includes the most recent common ancestor of all of its
members and all descendants of that ancestor.
A. Clade
B. Homoplasy
C. Parsimony
D. Polarity
E. Taxon - ANSWERSA. Clade
The term for weak swimmers.
A. planktonic
B. sessile
C. ctene
D. statolith
E. calcareous - ANSWERSA. planktonic
, Which of the following organism(s) are radially symmetrical?
A. Humans
B. Beetles
C. Cnidarian Polyps
D. Platyhelminthes
E. All of the above - ANSWERSC. Cnidarian Polyps
Which organelle possessed by protists are important in regulating water levels?
A. Contractile vacuole
B. Mitochondria
C. ER
D. Golgi
E. Nucleolus - ANSWERSA. Contractile vacuole
Which protest is responsible for malaria?
A. Toxoplasma gondii
B. Plasmodium falciparum
C. E. coli
D. B. anthracis
E. None of the above - ANSWERSB. Plasmodium falciparum
Malaria results in the destruction of:
A. RBCs
B. Neurons
C. Skeletal muscle
D. Smooth muscle
E. None of the above - ANSWERSA. RBCs
The term meaning fake feet.
A. Pseudopodia
B. Cilia
C. Flagella
D. Vacuole
E. Pedis facus - ANSWERSPseudopodia
Red tides, which are deadly if swam in, are caused by:
A. Ciliophorans
B. Medusae
C. Poriferans
D. Dinoflagellates
E. Humans going to the bathroom in the ocean - ANSWERSD. Dinoflagellates
The spicules of sponges are typically found in the ______.
A. Mesohyl
B. Mesoderm
Questions with Accurate Answers
Diploblastic animals lack a ________.
A. Endoderm
B. Mesoderm
C. Ectoderm
D. Dermatosome
E. None of the above - ANSWERSB. Mesoderm
The outermost layer of a triploblast is called ________.
A. Endoderm
B. Mesoderm
C. Ectoderm
D. Dermatosome
E. None of the above - ANSWERSC. Ectoderm
Humans are deuterostomes.
A. True
B. False - ANSWERSA. True
A term meaning nonmotile.
A. sessile
B. cilia
C. flagella
D. contractile vacuole
E. locomotion - ANSWERSA. sessile
A term meaning single-celled.
A. multicellular
B. monodentate
C. mononuclear
D. unicellular
E. acellular - ANSWERSD. unicellular
______ is the "universal solvent."
A. Acetone
B. Water
C. Gasoline
D. Kerosine
E. Bicarbonate - ANSWERSB. Water
,The term protostome means _____.
A. First gut
B. First anus
C. First mouth
D. Feet first
E. None of the above - ANSWERSC. First mouth
Deuterostomes are capable of forming twin offspring because:
A. Cells are programmed earlier in protostome development; Deuterostome cleavage is
indeterminate
B. Protostome cleavage is indeterminate
C. Protostome cells are much larger
D. Protostome cells are much more complex and are therefore special
E. All of the above - ANSWERSA. Cells are programmed earlier in protostome
development; Deuterostome cleavage is indeterminate
A group of taxa outside the group being studied, used to "root" the tree and imply the
direction of evolutionary changes.
A. outgroup
B. inside outgroup
C. ingroup
D. jacknife
E. polarity - ANSWERSA. outgroup
The principle stating that the least complex scenario leading to the development of a
certain trait is called ______.
A. parsimony
B. natural selection
C. polarity
D. cladogenesis
E. pleisiomorphy - ANSWERSA. parsimony
A group of organisms that includes the most recent common ancestor of all of its
members and all descendants of that ancestor.
A. Clade
B. Homoplasy
C. Parsimony
D. Polarity
E. Taxon - ANSWERSA. Clade
The term for weak swimmers.
A. planktonic
B. sessile
C. ctene
D. statolith
E. calcareous - ANSWERSA. planktonic
, Which of the following organism(s) are radially symmetrical?
A. Humans
B. Beetles
C. Cnidarian Polyps
D. Platyhelminthes
E. All of the above - ANSWERSC. Cnidarian Polyps
Which organelle possessed by protists are important in regulating water levels?
A. Contractile vacuole
B. Mitochondria
C. ER
D. Golgi
E. Nucleolus - ANSWERSA. Contractile vacuole
Which protest is responsible for malaria?
A. Toxoplasma gondii
B. Plasmodium falciparum
C. E. coli
D. B. anthracis
E. None of the above - ANSWERSB. Plasmodium falciparum
Malaria results in the destruction of:
A. RBCs
B. Neurons
C. Skeletal muscle
D. Smooth muscle
E. None of the above - ANSWERSA. RBCs
The term meaning fake feet.
A. Pseudopodia
B. Cilia
C. Flagella
D. Vacuole
E. Pedis facus - ANSWERSPseudopodia
Red tides, which are deadly if swam in, are caused by:
A. Ciliophorans
B. Medusae
C. Poriferans
D. Dinoflagellates
E. Humans going to the bathroom in the ocean - ANSWERSD. Dinoflagellates
The spicules of sponges are typically found in the ______.
A. Mesohyl
B. Mesoderm
