BSCI 207 FINAL EXAM QUESTIONS
AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
A crab living in an estuary is essentially an osmoregulator. Match
the action on the left with the correct condition on the right: -
correct answer- gills take in water by osmosis: during low
tide
urine is concentrated and of small amount: during high tide
crab consumes water and salt from food: during either tide
skinless wanter by osmosis: during high tide
A human baby's head seems really big compared to an adult.
Which of the following is the most accurate explanation for why
that is? - correct answer- The baby's head does actually
grow substantially, but it does so more slowly than the body as a
whole. This is negative allometry.
A lungfish has both gills and lungs. - correct answer- -
the gills utilize unidirectional flow
- the lungs utilize bidirectional flow
- the lungs utilize positive pressure breathing
,A number of characteristics evolved multiple times within the
protostomes. Which of the following probably evolved only
once? - correct answer- cephalization
Although they are not evolutionarily homologous, you might
consider the eye of a drosophila convergent to the eye of a
chick. Which of the following facts might help strengthen that
argument? - correct answer- Drosophila express eyeless
gene which is a similar gene to Pax6 in vertebrate eye
development
An organism that uses inorganic molecules to produce its energy
and which can directly fix carbon from simple inorganic carbon
molecules would be: - correct answer- a
chemolithoautotroph
Animal cloning has continued to improve after the experiments
on Dolly the sheep such that many other animals can be cloned.
If we took a skin cell from a dog with a long haired coat and
combined it with an enucleated (no nucleus) egg cell from a dog
with a short haired coat and then raised the embryo in a
surrogate mother with a wire haired coat, what kind of coat with
the resulting puppy have? - correct answer- long haired
,Animals fulfill their oxygen needs by having oxygen move by
__________ to the lungs, by __________ into the blood stream,
by ___________ to an organ in the body, and by __________
into the cells of that tissue. - correct answer- bulk flow,
diffusion, bulk flow, diffusion
Antibiotics can be used to fight pathogens. Which of these is
NOT a possible mechanism: - correct answer- strengthen
cell wall integrity
As animals went from unicellular protists to multicellular
animals, they changed in a number of ways. Select which of
these is a reason we might say that sponges are the same as
unicellular or colonial protists. - correct answer- The
digest food by intracellular phagocytosis, Flagellated cells work
together to generate a current, They don't have any germline
cells (i.e. gonads).
Assign the group on the left with the trait on the right (words
can be used more than once): - correct answer-
angiosperms: heterosporous
bryophytes: homosporous
gymnosperms: heterosporous
pteridophores: homosporous
, ATP is a great source of energy that enable organisms to do
work. What kind(s) of work is it used for? - correct answer-
It phosphorylates metabolites to perform chemical work and
proteins to perform physical work.
Below are ways that fungi can feed. - correct answer-
mutualistic, parasitic, saprobic
Birds and mammals independently evolved several major
innovations. Which is NOT one of those innovations? - correct
answer- Low metabolic rate
Carl Woese studied the phylogenetic relationships using the
rRNA gene because there weren't many morphological
characters that could distinguish different prokaryotic groups. -
correct answer- true
Cephalochordates have "gill" slits. What are they used for? -
correct answer- feeding
Chondrichthyes means "cartilage fish". How does this group,
including sharks, differ from its more recent bony fish cousins? -
AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
A crab living in an estuary is essentially an osmoregulator. Match
the action on the left with the correct condition on the right: -
correct answer- gills take in water by osmosis: during low
tide
urine is concentrated and of small amount: during high tide
crab consumes water and salt from food: during either tide
skinless wanter by osmosis: during high tide
A human baby's head seems really big compared to an adult.
Which of the following is the most accurate explanation for why
that is? - correct answer- The baby's head does actually
grow substantially, but it does so more slowly than the body as a
whole. This is negative allometry.
A lungfish has both gills and lungs. - correct answer- -
the gills utilize unidirectional flow
- the lungs utilize bidirectional flow
- the lungs utilize positive pressure breathing
,A number of characteristics evolved multiple times within the
protostomes. Which of the following probably evolved only
once? - correct answer- cephalization
Although they are not evolutionarily homologous, you might
consider the eye of a drosophila convergent to the eye of a
chick. Which of the following facts might help strengthen that
argument? - correct answer- Drosophila express eyeless
gene which is a similar gene to Pax6 in vertebrate eye
development
An organism that uses inorganic molecules to produce its energy
and which can directly fix carbon from simple inorganic carbon
molecules would be: - correct answer- a
chemolithoautotroph
Animal cloning has continued to improve after the experiments
on Dolly the sheep such that many other animals can be cloned.
If we took a skin cell from a dog with a long haired coat and
combined it with an enucleated (no nucleus) egg cell from a dog
with a short haired coat and then raised the embryo in a
surrogate mother with a wire haired coat, what kind of coat with
the resulting puppy have? - correct answer- long haired
,Animals fulfill their oxygen needs by having oxygen move by
__________ to the lungs, by __________ into the blood stream,
by ___________ to an organ in the body, and by __________
into the cells of that tissue. - correct answer- bulk flow,
diffusion, bulk flow, diffusion
Antibiotics can be used to fight pathogens. Which of these is
NOT a possible mechanism: - correct answer- strengthen
cell wall integrity
As animals went from unicellular protists to multicellular
animals, they changed in a number of ways. Select which of
these is a reason we might say that sponges are the same as
unicellular or colonial protists. - correct answer- The
digest food by intracellular phagocytosis, Flagellated cells work
together to generate a current, They don't have any germline
cells (i.e. gonads).
Assign the group on the left with the trait on the right (words
can be used more than once): - correct answer-
angiosperms: heterosporous
bryophytes: homosporous
gymnosperms: heterosporous
pteridophores: homosporous
, ATP is a great source of energy that enable organisms to do
work. What kind(s) of work is it used for? - correct answer-
It phosphorylates metabolites to perform chemical work and
proteins to perform physical work.
Below are ways that fungi can feed. - correct answer-
mutualistic, parasitic, saprobic
Birds and mammals independently evolved several major
innovations. Which is NOT one of those innovations? - correct
answer- Low metabolic rate
Carl Woese studied the phylogenetic relationships using the
rRNA gene because there weren't many morphological
characters that could distinguish different prokaryotic groups. -
correct answer- true
Cephalochordates have "gill" slits. What are they used for? -
correct answer- feeding
Chondrichthyes means "cartilage fish". How does this group,
including sharks, differ from its more recent bony fish cousins? -
