BIO 1108 UConn Final Exam 2025/2026 Questions With
100% Detailed Answers
When a coyote tobacco plant releases volatile signals in
response to M. sexta caterpillars, this is an example of
_______________. The presence of hairs on the leaf of a
milkweed plant is an example of ______________. -
ANSWER-an inducible defense; a constitutive defense
The majority of an individual fungus lives "in" its food
source. What characteristics of the fungal growth form
make this a necessity? - ANSWER-Fungi have a high ratio
of surface area to volume and are highly susceptible to
dessication.
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Vascular cambium is one of two lateral meristems, the
other being cork cambium. A plant grows in diameter
primarily through divisions of the vascular cambium. If you
pull a small piece of bark off a tree, and then look at its
inside surface, what tissue are you looking at (ignore any
remaining cells of vascular cambium that may be left)? -
ANSWER-phloem
The evolution from simple multicellular organisms to
complex multicellular organisms required: - ANSWER-
If the two guard cells of a stoma decrease their
concentration of potassium (K+) ions, what will happen to
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the corresponding pore? - ANSWER-The pore will open,
allowing for the diffusion of CO2 into the leaf.
Two species of frog mate in the same pond. One breeds in
early summer and one in late summer. This is an example
of what kind of reproductive isolation? - ANSWER-pre-
zygotic, temporal separation
Leaves absorb the least amount of light in the ________
range of the visible spectrum. - ANSWER-green
Which one of the following enabled eukaryotes to evolve
complex life cycles and programs of multicellular
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development? - ANSWER-complex patterns of gene
regulation
From an evolutionary perspective, germ-line mutations are
more significant than somatic mutations. This is because: -
ANSWER-somatic mutations affect only one or a few cells
and only germ-line mutations will appear in an individual's
descendants.
Arrange the steps in the Calvin cycle in order from earliest
to latest. - ANSWER-carboxylation, reduction,
regeneration