Exam- Bio/Ensci 251 Final Exam Practice Problems with
Verified Solutions
The abundance of O2 led to the evolution of...
a) anaerobic eukaryotes
b) aerobic eukaryotes
c) anaerobic prokaryotes
d) aerobic prokaryotes
e) both b and d Correct Answer-- Both b and d
Evidence indicates that all life of Earth today...
a) has a single common ancestor
b) requires oxygen for life
c) is able to extract energy from the sun
d) evolved from ancestors containing genetic material in the form of proteins
e) is multicellular Correct Answer-- Has a single common ancestor
If we picture the history of Earth as a 30-day month, modern humans arose
a) at the beginning of week 4
, Exam- Bio/Ensci 251 Final Exam Practice Problems with
Verified Solutions
b) on day 27
c) in the last 5 minutes of day 30
d) on day 15
e) in the early morning of day 30 Correct Answer-- In the last 5 minutes of day 30
A prerequisite for the survival of life on land was the accumulation of a protective layer of...
a) Oxygen gas in the atmosphere
b) Carbon dioxide in the atmosphere
c) water vapor in the atmosphere
d) ozone in the atmosphere
e) bacteria in the soil Correct Answer-- Ozone in the atmosphere
Every living organism on Earth can be assigned to one of the three separate...
a) species
b) genus groups
c) domains
, Exam- Bio/Ensci 251 Final Exam Practice Problems with
Verified Solutions
d) ancestors
e) genomes Correct Answer-- Domains
It is hypothesized that mitochondria in eukaryotic cells evolved by endosymbiosis, when a
larger cell ingested a smaller cell. If you were examining eukaryotic cells using a high-powered
microscope, what evidence would you look for that would best support this hypothesis?
a) Nuclei within the mitochondria
b) Chloroplasts within the mitochondria
c) Two membranes around each mitochondrion
d) A rupture in the membrane of the cell
e) A second cell within each mitochondrion Correct Answer-- Two membranes around
each mitochondrion
A phylogenetic tree...
a) classifies all plant species based on their habitats
b) diagrams the evolutionary history of a particular group of organisms
c) is based on binomial nomenclature
Verified Solutions
The abundance of O2 led to the evolution of...
a) anaerobic eukaryotes
b) aerobic eukaryotes
c) anaerobic prokaryotes
d) aerobic prokaryotes
e) both b and d Correct Answer-- Both b and d
Evidence indicates that all life of Earth today...
a) has a single common ancestor
b) requires oxygen for life
c) is able to extract energy from the sun
d) evolved from ancestors containing genetic material in the form of proteins
e) is multicellular Correct Answer-- Has a single common ancestor
If we picture the history of Earth as a 30-day month, modern humans arose
a) at the beginning of week 4
, Exam- Bio/Ensci 251 Final Exam Practice Problems with
Verified Solutions
b) on day 27
c) in the last 5 minutes of day 30
d) on day 15
e) in the early morning of day 30 Correct Answer-- In the last 5 minutes of day 30
A prerequisite for the survival of life on land was the accumulation of a protective layer of...
a) Oxygen gas in the atmosphere
b) Carbon dioxide in the atmosphere
c) water vapor in the atmosphere
d) ozone in the atmosphere
e) bacteria in the soil Correct Answer-- Ozone in the atmosphere
Every living organism on Earth can be assigned to one of the three separate...
a) species
b) genus groups
c) domains
, Exam- Bio/Ensci 251 Final Exam Practice Problems with
Verified Solutions
d) ancestors
e) genomes Correct Answer-- Domains
It is hypothesized that mitochondria in eukaryotic cells evolved by endosymbiosis, when a
larger cell ingested a smaller cell. If you were examining eukaryotic cells using a high-powered
microscope, what evidence would you look for that would best support this hypothesis?
a) Nuclei within the mitochondria
b) Chloroplasts within the mitochondria
c) Two membranes around each mitochondrion
d) A rupture in the membrane of the cell
e) A second cell within each mitochondrion Correct Answer-- Two membranes around
each mitochondrion
A phylogenetic tree...
a) classifies all plant species based on their habitats
b) diagrams the evolutionary history of a particular group of organisms
c) is based on binomial nomenclature
