Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
1|Page
CCBC BIO 110 EXAM 1 |2025-2026 LATEST UPDATED| REAL EXAM
QUESTIONS AND ANSWERS | 100% RATED CORRECT | 100% VERFIED
| ALREADY GRADED A+
Which of the following statements about natural selection is most accurate?
a) Mammals in cold climates need warm fur so they evolve thick coats.
b) Natural selection results in organisms that are perfectly adapted to their environment.
c) Natural selection can only act on populations with genetic variation.
d) Natural selection is a random process. - (answer)c) Natural selection can only act on
populations with genetic variation.
In the case study for Tutorial #1, you learned about the "Evolution Canyons" that exist in the
mountains of Israel. Singaravelan et al (2010) investigated how the melanin content of the hair of
spiny mice (Acomys cahirinus) has evolved in response to alternative selection pressures
inflicted by contrasting colored habitats of Evolution Canyon I (ECI). The results of this study
show that spiny mice that live on the African slope of ECI have
a) higher pheomelanin than eumelanin content in their hair.
b) lower pheomelanin than eumelanin content in their hair.
c) coloration that is the same as spiny mice living on the European slope.
d) darker hair than their counterparts on the European slope. - (answer)a) higher pheomelanin
than eumelanin content in their hair
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 2 of 85
year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
2|Page
Natural selection _______________________.
a) is the process by which a population becomes more well adapted to its' environment over time
b) is the same as evolution
c) only took place a long time ago
d) is the only evolutionary process - (answer)a) is the process by which a population becomes
more well adapted to its' environment over time
The available scientific data indicates that life first arose ______________.
a) 500 million years ago
b) about 3.7 billion years ago
c) less than 10,000 years ago
d) about 3.7 million years ago - (answer)b) about 3.7 billion years ago
Amino acids are joined by _________.
a) peptide bonds
b) hydrogen bonds
c) ionic bonds
d) van der Waals interactions - (answer)a) peptide bonds
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 3 of 85
year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
3|Page
An example of catabolism is the _________________.
a) removal of water from a peptide bond
b) breakdown of starch into simple sugars
c) production of testosterone
d) synthesis of DNA from nucleotide bases - (answer)b) breakdown of starch into simple sugars
If two molecules of glucose (C6H12O6) are joined via condensation synthesis, the resulting
molecule would have a molecular formula of _______________.
a) C12H25O13
b) C12H24O12
c) C12H22O11
d) C6H12O6 - (answer)c) C12H22O11
Sweat plays an important role in thermoregulation due to the high heat of vaporization of water.
That is, it takes energy to not only raise the temperature of water, but additional energy is
required to make the phase change from water to gas. In individuals with HED (hypohidrotic
ectodermal dysplasia), sweat gland numbers are reduced. Predictably, what symptoms occur in
HED-affected individuals?
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 4 of 85
year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
4|Page
a) They would have excessive body odor.
b) They would always be thirsty.
c) They would be prone to heat stroke.
d) There would be no symptoms associated with this condition. - (answer)c) They would be
prone to heat stroke.
Lipids are predominantly hydrophobic because of their ______________.
a) sugar-phosphate backbone
b) nitrogenous bases
c) phosphate groups
d) hydrocarbon chains - (answer)d) hydrocarbon chains
RNA's nitrogenous bases include ____________.
a) guanine and thymine
b) uracil and thymine
c) uracil and guanine
d) none of these choices - (answer)c) uracil and guanine
Ice floats. What would be the consequence to aquatic life if ice sank?
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 5 of 85
year?
Comprehensive Study Guide- Solved Exam Q&A
1|Page
CCBC BIO 110 EXAM 1 |2025-2026 LATEST UPDATED| REAL EXAM
QUESTIONS AND ANSWERS | 100% RATED CORRECT | 100% VERFIED
| ALREADY GRADED A+
Which of the following statements about natural selection is most accurate?
a) Mammals in cold climates need warm fur so they evolve thick coats.
b) Natural selection results in organisms that are perfectly adapted to their environment.
c) Natural selection can only act on populations with genetic variation.
d) Natural selection is a random process. - (answer)c) Natural selection can only act on
populations with genetic variation.
In the case study for Tutorial #1, you learned about the "Evolution Canyons" that exist in the
mountains of Israel. Singaravelan et al (2010) investigated how the melanin content of the hair of
spiny mice (Acomys cahirinus) has evolved in response to alternative selection pressures
inflicted by contrasting colored habitats of Evolution Canyon I (ECI). The results of this study
show that spiny mice that live on the African slope of ECI have
a) higher pheomelanin than eumelanin content in their hair.
b) lower pheomelanin than eumelanin content in their hair.
c) coloration that is the same as spiny mice living on the European slope.
d) darker hair than their counterparts on the European slope. - (answer)a) higher pheomelanin
than eumelanin content in their hair
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 2 of 85
year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
2|Page
Natural selection _______________________.
a) is the process by which a population becomes more well adapted to its' environment over time
b) is the same as evolution
c) only took place a long time ago
d) is the only evolutionary process - (answer)a) is the process by which a population becomes
more well adapted to its' environment over time
The available scientific data indicates that life first arose ______________.
a) 500 million years ago
b) about 3.7 billion years ago
c) less than 10,000 years ago
d) about 3.7 million years ago - (answer)b) about 3.7 billion years ago
Amino acids are joined by _________.
a) peptide bonds
b) hydrogen bonds
c) ionic bonds
d) van der Waals interactions - (answer)a) peptide bonds
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 3 of 85
year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
3|Page
An example of catabolism is the _________________.
a) removal of water from a peptide bond
b) breakdown of starch into simple sugars
c) production of testosterone
d) synthesis of DNA from nucleotide bases - (answer)b) breakdown of starch into simple sugars
If two molecules of glucose (C6H12O6) are joined via condensation synthesis, the resulting
molecule would have a molecular formula of _______________.
a) C12H25O13
b) C12H24O12
c) C12H22O11
d) C6H12O6 - (answer)c) C12H22O11
Sweat plays an important role in thermoregulation due to the high heat of vaporization of water.
That is, it takes energy to not only raise the temperature of water, but additional energy is
required to make the phase change from water to gas. In individuals with HED (hypohidrotic
ectodermal dysplasia), sweat gland numbers are reduced. Predictably, what symptoms occur in
HED-affected individuals?
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 4 of 85
year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Comprehensive Study Guide- Solved Exam Q&A
4|Page
a) They would have excessive body odor.
b) They would always be thirsty.
c) They would be prone to heat stroke.
d) There would be no symptoms associated with this condition. - (answer)c) They would be
prone to heat stroke.
Lipids are predominantly hydrophobic because of their ______________.
a) sugar-phosphate backbone
b) nitrogenous bases
c) phosphate groups
d) hydrocarbon chains - (answer)d) hydrocarbon chains
RNA's nitrogenous bases include ____________.
a) guanine and thymine
b) uracil and thymine
c) uracil and guanine
d) none of these choices - (answer)c) uracil and guanine
Ice floats. What would be the consequence to aquatic life if ice sank?
Downloaded by: aplusgrade0 | Want to earn $1.236
Distribution 2025/2026!!!!!!
of this document is illegal Page
extra per 5 of 85
year?
