BSCI 207 EXAM REVIEW QUESTIONS AND
ANSWERS WITH VERIFIED SOLUTIONS
100% CORRECT
A baby penguin must nestle close to the body of its parent in the
arctic. Why does it have a harder time staying warm that its
parent?
A.)it has smaller surface area to volume ratio
B.)it has larger surface area to volume ratio
C.)It has a larger temperature difference compared to the
environment
D.)it has a smaller temperature difference compared to the
environment - correct answer- B
a.)name the three domains of life that would be noted in Carl
Woese tree?
b.)what was the key advantage that the eukaryotes gained
through the merger?
c.)how did the merger enable the eukaryotes to overcome major
global environmental change?
d.)what are two characteristics that are shared by the common
ancestor in this tree? - correct answer- a.)Bacteria,
Eukarya, Archaea
,b.)eukarya advantages gained the alpha proteobacteria which
allowed this group to thrive in the oxygen rich environment.
c.)the alpha proteobacteria were able to use oxygen for the use
of cellular respiration. in the new atmosphere the cyanobacteria
were producing oxygen so a lot of early life had to adapt to this
new atmosphere. Some of the early life did not thrive in this
condition because O2 was harmful to them. but this merger of
the two species allowed for the eukarya to grow and thrive in
this environment.
d.)all ancestors useRNA and the last common ancestor had to
produce ATP
Adult salmon live in the ocean. Which of the following is a
process that impacts their osmolarity in this environment?
A.)They gain water by osmosis into their gills
B.)They pump salt out of their gills
C.)they excrete lots of water making large volumes of urine
D.)they minimize salt excretion, making dilute urine - correct
answer- B
Amniotes major innovation? - correct answer- young
develop in eggs with shells
, An organism that uses high energy inorganic chemicals to
produce ATP and gets its carbon from organic molecules would
be called ______________? - correct answer-
Chemolitho-hetero-troph
Arbuscular microrhyzal key characteristic is? - correct
answer- symbiosis of fungi and protists
As humans get older, they often struggle with plaque build up in
their arteries. Assume you are a doctor studying a patient whose
blood vessel diameter decreases to 80% of what it was when the
person was younger. What will be the ratio of the resistance to
blood flow in the older blood vessel compare to the younger
version? - correct answer- 2.44
Ascidomycetes key characteristic is? - correct answer-
sac fungi with diakaryon
Assume you are still treating the older patient with partially
occluded arteries (atherosclerosis). You have been monitoring
the patient over time. If the volumetric blood flow through the
patient's system remains the same, what (if anything) happens
to the patients blood pressure as a result of the atherosclerosis?
A.)it will decrease
ANSWERS WITH VERIFIED SOLUTIONS
100% CORRECT
A baby penguin must nestle close to the body of its parent in the
arctic. Why does it have a harder time staying warm that its
parent?
A.)it has smaller surface area to volume ratio
B.)it has larger surface area to volume ratio
C.)It has a larger temperature difference compared to the
environment
D.)it has a smaller temperature difference compared to the
environment - correct answer- B
a.)name the three domains of life that would be noted in Carl
Woese tree?
b.)what was the key advantage that the eukaryotes gained
through the merger?
c.)how did the merger enable the eukaryotes to overcome major
global environmental change?
d.)what are two characteristics that are shared by the common
ancestor in this tree? - correct answer- a.)Bacteria,
Eukarya, Archaea
,b.)eukarya advantages gained the alpha proteobacteria which
allowed this group to thrive in the oxygen rich environment.
c.)the alpha proteobacteria were able to use oxygen for the use
of cellular respiration. in the new atmosphere the cyanobacteria
were producing oxygen so a lot of early life had to adapt to this
new atmosphere. Some of the early life did not thrive in this
condition because O2 was harmful to them. but this merger of
the two species allowed for the eukarya to grow and thrive in
this environment.
d.)all ancestors useRNA and the last common ancestor had to
produce ATP
Adult salmon live in the ocean. Which of the following is a
process that impacts their osmolarity in this environment?
A.)They gain water by osmosis into their gills
B.)They pump salt out of their gills
C.)they excrete lots of water making large volumes of urine
D.)they minimize salt excretion, making dilute urine - correct
answer- B
Amniotes major innovation? - correct answer- young
develop in eggs with shells
, An organism that uses high energy inorganic chemicals to
produce ATP and gets its carbon from organic molecules would
be called ______________? - correct answer-
Chemolitho-hetero-troph
Arbuscular microrhyzal key characteristic is? - correct
answer- symbiosis of fungi and protists
As humans get older, they often struggle with plaque build up in
their arteries. Assume you are a doctor studying a patient whose
blood vessel diameter decreases to 80% of what it was when the
person was younger. What will be the ratio of the resistance to
blood flow in the older blood vessel compare to the younger
version? - correct answer- 2.44
Ascidomycetes key characteristic is? - correct answer-
sac fungi with diakaryon
Assume you are still treating the older patient with partially
occluded arteries (atherosclerosis). You have been monitoring
the patient over time. If the volumetric blood flow through the
patient's system remains the same, what (if anything) happens
to the patients blood pressure as a result of the atherosclerosis?
A.)it will decrease
