UTA Zoology Exam 1 Questions with
Correct Answers
Describe the Heirarchy at the organismal level. - Answer-Cells combine to form
tissues, which combine to form organs which combine to form organ systems.
Cells are considered the ________ ________ of __________ __________. -
Answer-basic unit ; living systems
True or False: Each successively higher layer of biological hierarchy is composed of
units that are part of the preceding lower level of hierarchy. - Answer-True.
What is the consequence of this composition of hierarchy? - Answer-Properties at
any given level cannot be inferred, even from the most complete knowledge of its'
component parts.
What is the appearance of new characteristics at any given level of organization? -
Answer-Emergence.
Where do emergent properties come from? - Answer-E. Properties arise from the
interactions among the component parts.
EX) social behavior
Variation of E. Properties when defining life ? - Answer-Variation of emergent
properties arising from common structures/ (homologous) structures makes defining
life difficult.
True or False: Life arises spontaneously. - Answer-False.
Where does life come from? - Answer-Only from prior life.
New life is made possible by what process? - Answer-Reproduction.
True or False: Life has never come from non-living matter. - Answer-False, however
this origin featured tremendously long periods of time and conditions different from
the current biosphere.
Define Speciation - Answer-The splitting of a species to create a new species
Define Heredity. - Answer-Faithful transmission of traits from parents to offspring
usually at the organismal level.
Define Variation. - Answer-Production of differences among traits of different
individuals.
, Give Biological examples of Variation. - Answer-Replication of DNA has high fidelity
but has errors at repeatable rates/Cell division is precise but chromosomal changes
occur nonetheless at measurable rates.
What does the interaction between Heredity and Variation yield? - Answer-Evolution.
If heredity had no errors, what would happen? - Answer-Living systems would not
change.
Define Sexual reproduction.
Define Asexual reproduction. - Answer-Two parents contribute genetic material to
the offspring;
One parent produces an identical offspring.
What is the name of the mode of reproduction shown in class? And the Example? -
Answer-(Reproductive Mode)
&
Intrauterine Cannibalism.
Describe the example of Reproductive Mode shown in class. (Intrauterine
Cannibalism) - Answer-An example of Intrauterine Cannibalism would be Sand tiger
sharks. Multiple embryos are created at impregnation but only one or two are born.
The larger/stronger ones consume their siblings as a source of nutrients.
What encodes protein molecules? - Answer-Nucleic Acids.
What does DNA/RNA provide? - Answer-"Fidelity of inheritance" (Heritability).
What stores genetic information in most animals/organisms? - Answer-
Deoxyribonucleic Acid.
What are the four nitrogenous bases of DNA? Which is replaced in RNA? - Answer-
Adenine, Thymine, Guanine, Cytosine; Thymine is replaced with Uracil.
What is DNA composed of? - Answer-Nucleotides.
What do nucleotides contain? - Answer-(1 of 4) Nitrogenous Base, Pentose?, and
Sugar Phosphate group.
What is the corresponding interaction between sequence of nitrogenous bases in
DNA and sequence of amino acids in Proteins called? - Answer-The Genetic code.
How do living organisms maintain themselves? - Answer-By acquiring nutrients from
the environment and process them.
Correct Answers
Describe the Heirarchy at the organismal level. - Answer-Cells combine to form
tissues, which combine to form organs which combine to form organ systems.
Cells are considered the ________ ________ of __________ __________. -
Answer-basic unit ; living systems
True or False: Each successively higher layer of biological hierarchy is composed of
units that are part of the preceding lower level of hierarchy. - Answer-True.
What is the consequence of this composition of hierarchy? - Answer-Properties at
any given level cannot be inferred, even from the most complete knowledge of its'
component parts.
What is the appearance of new characteristics at any given level of organization? -
Answer-Emergence.
Where do emergent properties come from? - Answer-E. Properties arise from the
interactions among the component parts.
EX) social behavior
Variation of E. Properties when defining life ? - Answer-Variation of emergent
properties arising from common structures/ (homologous) structures makes defining
life difficult.
True or False: Life arises spontaneously. - Answer-False.
Where does life come from? - Answer-Only from prior life.
New life is made possible by what process? - Answer-Reproduction.
True or False: Life has never come from non-living matter. - Answer-False, however
this origin featured tremendously long periods of time and conditions different from
the current biosphere.
Define Speciation - Answer-The splitting of a species to create a new species
Define Heredity. - Answer-Faithful transmission of traits from parents to offspring
usually at the organismal level.
Define Variation. - Answer-Production of differences among traits of different
individuals.
, Give Biological examples of Variation. - Answer-Replication of DNA has high fidelity
but has errors at repeatable rates/Cell division is precise but chromosomal changes
occur nonetheless at measurable rates.
What does the interaction between Heredity and Variation yield? - Answer-Evolution.
If heredity had no errors, what would happen? - Answer-Living systems would not
change.
Define Sexual reproduction.
Define Asexual reproduction. - Answer-Two parents contribute genetic material to
the offspring;
One parent produces an identical offspring.
What is the name of the mode of reproduction shown in class? And the Example? -
Answer-(Reproductive Mode)
&
Intrauterine Cannibalism.
Describe the example of Reproductive Mode shown in class. (Intrauterine
Cannibalism) - Answer-An example of Intrauterine Cannibalism would be Sand tiger
sharks. Multiple embryos are created at impregnation but only one or two are born.
The larger/stronger ones consume their siblings as a source of nutrients.
What encodes protein molecules? - Answer-Nucleic Acids.
What does DNA/RNA provide? - Answer-"Fidelity of inheritance" (Heritability).
What stores genetic information in most animals/organisms? - Answer-
Deoxyribonucleic Acid.
What are the four nitrogenous bases of DNA? Which is replaced in RNA? - Answer-
Adenine, Thymine, Guanine, Cytosine; Thymine is replaced with Uracil.
What is DNA composed of? - Answer-Nucleotides.
What do nucleotides contain? - Answer-(1 of 4) Nitrogenous Base, Pentose?, and
Sugar Phosphate group.
What is the corresponding interaction between sequence of nitrogenous bases in
DNA and sequence of amino acids in Proteins called? - Answer-The Genetic code.
How do living organisms maintain themselves? - Answer-By acquiring nutrients from
the environment and process them.
