BIO 182 - MODULE 4, EXAM 2
(COGBOOKS REVIEW
QUESTIONS WITH ACCURATE
ANSWERS) GRADE A+ 2026
4.1 - The range of environmental temperatures in which a genotype can persist is one of
its _________. - answer-Niche
4.1 - The niche of a fish is defined by ______________. - answer-All of the above:
Temperature, salinity, pH, other species of fish
4.1 - The thermal niche of a desert organism __________________ - answer-Will differ
from that of a polar organism
4.1 - The fact that one can find fish in both tropical and polar waters implies that
_______________. - answer-Different species of fish have adapted to different
environmental conditions
4.1 - Which is the best description of the niche of a salmon? - answer-Salinities between
0 and 3,000 ppm
(T/F) 4.1 - An enzyme maintains a rigid structure while catalyzing a reaction. - answer-
False
4.1 - Which type of chemical bond will stabilize an enzyme's structure the most -
answer-Covalent
4.1 - Organisms such as the Antarctic fish can swim at extremely low temperatures.
Which mechanism best describes how they do this - answer-They modify their proteins
to be more flexible
, 4.1 - Which types of organisms should evolve the most rigid enzymes - answer-Desert
organisms
(T/F) 4.1 - The enzymes of animals in old vents (colder) should be more flexible than
those of animals in young vents (warmer)? - answer-True
4.2 - Phenotypic plasticity occurs when one __________ produces multiple __________ -
answer-Genotypes / Phenotypes
4.2 - The primary cost of tanning is ______________________. - answer-The energy needed
to produce melanin
4.2 - Which of the following environmental factors can affect the phenotypes expressed
by a genotype? - answer-All of the above cause plasticity: atmospheric oxygen, diet,
solar radiation, humidity
(T/F) 4.2 - All individuals of a species express the same degree of plasticity. - answer-
False
4.2 - lasticity is most adaptive when the environment changes __________ throughout an
organism's life. - answer-Slowly and predictably
(T/F) 4.2 - Acclimation involves a change in the genotype triggered by a change in the
environment - answer-False (Acclimation involves a change in the phenotype)
(T/F) 4.2 - Given a limited supply of energy, fish acclimated to a high temperature should
outperform fish acclimated to a low temperature, when tested at a high temperature -
answer-True
(T/F) 4.2 - Acclimation benefits an organism the most when the environment changes
quickly and the phenotype changes slowly - answer-False
(COGBOOKS REVIEW
QUESTIONS WITH ACCURATE
ANSWERS) GRADE A+ 2026
4.1 - The range of environmental temperatures in which a genotype can persist is one of
its _________. - answer-Niche
4.1 - The niche of a fish is defined by ______________. - answer-All of the above:
Temperature, salinity, pH, other species of fish
4.1 - The thermal niche of a desert organism __________________ - answer-Will differ
from that of a polar organism
4.1 - The fact that one can find fish in both tropical and polar waters implies that
_______________. - answer-Different species of fish have adapted to different
environmental conditions
4.1 - Which is the best description of the niche of a salmon? - answer-Salinities between
0 and 3,000 ppm
(T/F) 4.1 - An enzyme maintains a rigid structure while catalyzing a reaction. - answer-
False
4.1 - Which type of chemical bond will stabilize an enzyme's structure the most -
answer-Covalent
4.1 - Organisms such as the Antarctic fish can swim at extremely low temperatures.
Which mechanism best describes how they do this - answer-They modify their proteins
to be more flexible
, 4.1 - Which types of organisms should evolve the most rigid enzymes - answer-Desert
organisms
(T/F) 4.1 - The enzymes of animals in old vents (colder) should be more flexible than
those of animals in young vents (warmer)? - answer-True
4.2 - Phenotypic plasticity occurs when one __________ produces multiple __________ -
answer-Genotypes / Phenotypes
4.2 - The primary cost of tanning is ______________________. - answer-The energy needed
to produce melanin
4.2 - Which of the following environmental factors can affect the phenotypes expressed
by a genotype? - answer-All of the above cause plasticity: atmospheric oxygen, diet,
solar radiation, humidity
(T/F) 4.2 - All individuals of a species express the same degree of plasticity. - answer-
False
4.2 - lasticity is most adaptive when the environment changes __________ throughout an
organism's life. - answer-Slowly and predictably
(T/F) 4.2 - Acclimation involves a change in the genotype triggered by a change in the
environment - answer-False (Acclimation involves a change in the phenotype)
(T/F) 4.2 - Given a limited supply of energy, fish acclimated to a high temperature should
outperform fish acclimated to a low temperature, when tested at a high temperature -
answer-True
(T/F) 4.2 - Acclimation benefits an organism the most when the environment changes
quickly and the phenotype changes slowly - answer-False
