Zoology Exam 1-3 Exam Questions
with Complete Answers
On what basis are populations assigned to the same biological species?
A very similar appearance
Sharing a common ancestor
Being able to interbreed and produce fertile offspring
Having 99% of their genes in common - Answer-Being able to interbreed and
produce fertile offspring
Organelles found in the pellicle of Ciliophorans that discharge into long threads
which maybe for anchoring, defense, food capture are ___
Trichocysts
Plastids
Cilia
Ciliophorans - Answer-Trichocysts
Organelle that is the site for cellular respiration is ___
Plastid
Chloroplast
Mitochondria
Nucleus - Answer-Mitochondria
Organisms that are unable to produce their own food are ___
Autotrophs
Chemotrophs
Heterotrophs
Megatrophs - Answer-Heterotrophs
Organisms that can can be divided along the sagital line into the left and right halves
that are mirror images are said to have ___ symmetry
Spherical
Radial
Biracial
Bilateral - Answer-Bilateral
Permanent and random genetic change that most often results in no change or a
negative effect on alleles in a population is ___
Bottleneck
Mutation
Gene flow
Error - Answer-Mutation
Protozoans in this phylum are all parasites
Apicomplexa
Dinoflagellata
Ciliophora
,Formanifera - Answer-Apicomplexa
Protozoans with silica tests that have long spines and elaborate/intricate designs are
___
Ciliates
Radiolarians
Formaniferans
Dinoflagellates - Answer-Radiolarians
Similar structures that arise in unrelated organisms are called ___
Nonadaptive structures
Analogous structures
Differential structures
Homologous structures - Answer-Analogous structures
Some amoebas make a protective shell or test. Those that construct this shell of
calcium carbonate are the ___
Dinoflagellates
Radiolarians
Formaniferans
Ciliophorans - Answer-Formaniferans
___ symmetry is when arrangement of parts is so that only a single plane passing
through the longitudinal axis of the animal divides it into mirror right and left images
Asymmetry
Radial
Spherical
Bilateral - Answer-Bilateral
The agent of malaria, which kills almost one million people each year globally, is ___
Noctiluca
Plasmodium
Toxoplasma
Trypanosoma - Answer-Plasmodium
The agents of red tide, which may be red, brown, yellow, or colorless, are the ___
Dinoflagellates
Radiolarians
Formaniferans
Ciliophorans - Answer-Dinoflagellates
The arrangement of parts so that any plane through the oral-aboral axis divides the
animal into mirror images is ___
Spherical symmetry
Radial symmetry
Bilateral symmetry
Asymmetry - Answer-Radial symmetry
The arrangement of parts without central axis or point is ___
Spherical symmetry
, Asymmetry
Radial symmetry
Bilateral symmetry - Answer-Asymmetry
The asexual form of reproduction in which a cell splits into two cells is ___
Schizogony
Conjugation
Syngamy
Binary fission - Answer-Binary fission
The ___ commonly form chalk and limestone deposits after they die from their
calcium carbonate tests
Formaniferan
Radiolarian
Heliozoan
Difflugian - Answer-Formaniferan
The comparison of anatomical structures that appear during early stages of
development in different species is comparative ___
Zoology
Embryology
Histology
Cytology - Answer-Embryology
The dinoflagellates that have a mutualistic symbiosis with cnidarians that is needed
for reef building are ___
Entamoeba
Zooxanthellae
Gymnodunium
Radiolarian - Answer-Zooxanthellae
The first person to classify animals in a way that is still used today was ___
Linnaeus
Haeckel
Aristotle
Hennig - Answer-Linnaeus
The formal system for naming and classifying species is ___
Genetics
Taxonomy
Cladistics
Systematic - Answer-Taxonomy
The inner embryological layer in triploblastic animals is ___
Mesoderm
Endoderm
Gastroderm
Epiderm - Answer-Endoderm
with Complete Answers
On what basis are populations assigned to the same biological species?
A very similar appearance
Sharing a common ancestor
Being able to interbreed and produce fertile offspring
Having 99% of their genes in common - Answer-Being able to interbreed and
produce fertile offspring
Organelles found in the pellicle of Ciliophorans that discharge into long threads
which maybe for anchoring, defense, food capture are ___
Trichocysts
Plastids
Cilia
Ciliophorans - Answer-Trichocysts
Organelle that is the site for cellular respiration is ___
Plastid
Chloroplast
Mitochondria
Nucleus - Answer-Mitochondria
Organisms that are unable to produce their own food are ___
Autotrophs
Chemotrophs
Heterotrophs
Megatrophs - Answer-Heterotrophs
Organisms that can can be divided along the sagital line into the left and right halves
that are mirror images are said to have ___ symmetry
Spherical
Radial
Biracial
Bilateral - Answer-Bilateral
Permanent and random genetic change that most often results in no change or a
negative effect on alleles in a population is ___
Bottleneck
Mutation
Gene flow
Error - Answer-Mutation
Protozoans in this phylum are all parasites
Apicomplexa
Dinoflagellata
Ciliophora
,Formanifera - Answer-Apicomplexa
Protozoans with silica tests that have long spines and elaborate/intricate designs are
___
Ciliates
Radiolarians
Formaniferans
Dinoflagellates - Answer-Radiolarians
Similar structures that arise in unrelated organisms are called ___
Nonadaptive structures
Analogous structures
Differential structures
Homologous structures - Answer-Analogous structures
Some amoebas make a protective shell or test. Those that construct this shell of
calcium carbonate are the ___
Dinoflagellates
Radiolarians
Formaniferans
Ciliophorans - Answer-Formaniferans
___ symmetry is when arrangement of parts is so that only a single plane passing
through the longitudinal axis of the animal divides it into mirror right and left images
Asymmetry
Radial
Spherical
Bilateral - Answer-Bilateral
The agent of malaria, which kills almost one million people each year globally, is ___
Noctiluca
Plasmodium
Toxoplasma
Trypanosoma - Answer-Plasmodium
The agents of red tide, which may be red, brown, yellow, or colorless, are the ___
Dinoflagellates
Radiolarians
Formaniferans
Ciliophorans - Answer-Dinoflagellates
The arrangement of parts so that any plane through the oral-aboral axis divides the
animal into mirror images is ___
Spherical symmetry
Radial symmetry
Bilateral symmetry
Asymmetry - Answer-Radial symmetry
The arrangement of parts without central axis or point is ___
Spherical symmetry
, Asymmetry
Radial symmetry
Bilateral symmetry - Answer-Asymmetry
The asexual form of reproduction in which a cell splits into two cells is ___
Schizogony
Conjugation
Syngamy
Binary fission - Answer-Binary fission
The ___ commonly form chalk and limestone deposits after they die from their
calcium carbonate tests
Formaniferan
Radiolarian
Heliozoan
Difflugian - Answer-Formaniferan
The comparison of anatomical structures that appear during early stages of
development in different species is comparative ___
Zoology
Embryology
Histology
Cytology - Answer-Embryology
The dinoflagellates that have a mutualistic symbiosis with cnidarians that is needed
for reef building are ___
Entamoeba
Zooxanthellae
Gymnodunium
Radiolarian - Answer-Zooxanthellae
The first person to classify animals in a way that is still used today was ___
Linnaeus
Haeckel
Aristotle
Hennig - Answer-Linnaeus
The formal system for naming and classifying species is ___
Genetics
Taxonomy
Cladistics
Systematic - Answer-Taxonomy
The inner embryological layer in triploblastic animals is ___
Mesoderm
Endoderm
Gastroderm
Epiderm - Answer-Endoderm
