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Biology 1010 Chattanooga State Final Exam Questions
with Answers (100% Correct Answers)
To understand evolutionary relationships, we compare species. We look
at 5 different types of evidence to understand how new species form,
and how life evolves over time. What are they? Answer: Fossils, Anatomy,
Embryology, Biogeography, and Molecular Biology
To understand how new species form, we talked about different barriers
that keep species apart, or force one population to diverge into two.
What are the 5 pre-zygotic barriers we discussed? What are the 3 post-
zygotic barriers we discussed? Answer: Pre-zygotic: spatial isolation,
temporal isolation, mechanical isolation, gametic isolation and behavioral
isolation.
Post-zygotic: hybrid inviability, hybrid sterility and hybrid "breakdown."
Another way new species form is via allopatric or sympatric speciation.
What do they mean? How do those types of speciation events result in
new species forming? Answer: Allopatric- "other homelands", involves a
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geographic separation of populations from a parent species and
subsequent evolution.
Sympatric- "same homeland", involves speciation occurring within a
parent species while remaining in one location.
What were the effects of salt concentration on the hatching viability of
brine shrimp? Answer: 1-2% salt, or 1 2/3 tablespoon of salt per quart of
water.
What are the first and second laws of the thermodynamics? Answer: 1.
total amount of energy is constant and conserved. There always been
and always will be the same amount of energy. Energy can't be created
or destroyed.
2. Energy will always be lost as heat in energy transfers.
What is entropy? Answer: A measure of disorder or randomness.
High entropy means high disorder.
© 2025 All rights reserved
Biology 1010 Chattanooga State Final Exam Questions
with Answers (100% Correct Answers)
To understand evolutionary relationships, we compare species. We look
at 5 different types of evidence to understand how new species form,
and how life evolves over time. What are they? Answer: Fossils, Anatomy,
Embryology, Biogeography, and Molecular Biology
To understand how new species form, we talked about different barriers
that keep species apart, or force one population to diverge into two.
What are the 5 pre-zygotic barriers we discussed? What are the 3 post-
zygotic barriers we discussed? Answer: Pre-zygotic: spatial isolation,
temporal isolation, mechanical isolation, gametic isolation and behavioral
isolation.
Post-zygotic: hybrid inviability, hybrid sterility and hybrid "breakdown."
Another way new species form is via allopatric or sympatric speciation.
What do they mean? How do those types of speciation events result in
new species forming? Answer: Allopatric- "other homelands", involves a
© 2025 All rights reserved
, 2
geographic separation of populations from a parent species and
subsequent evolution.
Sympatric- "same homeland", involves speciation occurring within a
parent species while remaining in one location.
What were the effects of salt concentration on the hatching viability of
brine shrimp? Answer: 1-2% salt, or 1 2/3 tablespoon of salt per quart of
water.
What are the first and second laws of the thermodynamics? Answer: 1.
total amount of energy is constant and conserved. There always been
and always will be the same amount of energy. Energy can't be created
or destroyed.
2. Energy will always be lost as heat in energy transfers.
What is entropy? Answer: A measure of disorder or randomness.
High entropy means high disorder.
© 2025 All rights reserved
