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2024 BIOLOGY 1108 FINAL EXAM QUESTIONS WITH CORRECT ANSWERS
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2024 BIOLOGY 1108 FINALEXAM QUESTIONS WITH
CORRECT ANSWERS
According to phylogeny, which of the following correctly lists the sequence in
which multicellularity, tissues, and bilateral symmetry arose, from the oldest
character to the most recent? - CORRECT ANSWERS-multicellularity, tissues,
bilateral symmetry
Sponges move huge volumes of water through their bodies every day.
Although this serves the function of filter feeding for the organism, how
might this also provide an "ecosystem" service (something that affects
and/or benefits other organisms in their environment)? - CORRECT
ANSWERS-They create small currents in their microenvironment that help to
circulate and clean water locally for other organisms.
Which of the following is NOT a characteristic exclusively found in animals? -
CORRECT ANSWERS-multicellularity
Unlike cnidarians, the comb jellies have an anterior-posterior axis (an
up/down orientation). This orientation allows for ____ in comb jellies. -
CORRECT ANSWERS-more efficient nutrient digestion
Cnidarians are able to capture prey with the aid of ___, harpoon-like
organelles that are often tipped with neurotoxins. - CORRECT ANSWERS-
nematocysts
The term "n" refers to the size of a population, that is, the number of
individuals in that population. In general, in a sample of n individuals, the
frequency of an allele is: - CORRECT ANSWERS-the number of occurrences of
the allele divided by twice the number of individuals in the sample (2n)
If a population is not in Hardy-Weinberg equilibrium, we can conclude that: -
CORRECT ANSWERS-evolution has occurred because one of the assumptions
of the Hardy-Weinberg equilibrium has been violated
The goldenrod gall fly lays its eggs on the terminal buds of goldenrod plants.
Larvae chew through the buds and into the stems, where their saliva induces
the plant to generate a gall (an outgrowth of tissue). This gall then provides
, food and shelter for the developing larva. The larvae are prey of both
parasitoid wasps and birds. Wasps selectively prey on larvae inside the
smallest galls while the birds selectively prey on the larvae inside the largest
galls. Goldenrod gall files are therefore subject to: - CORRECT ANSWERS-
stabilizing selection
You find that a wild population of antelope is not in Hardy-Weinberg
Equilibrium. From this information alone, can you determine the mechanism
of evolution operating on the population? - CORRECT ANSWERS-no
A population with a novel adaptation has evolved that adaptation. -
CORRECT ANSWERS-true
Polytomy is a graphical depiction of what type of relationship between
groups? - CORRECT ANSWERS-The common ancestor node with no resolution
among descendant groups.
Phylogenetic trees are: - CORRECT ANSWERS-both a and b are correct
(hypotheses and built using observed data)
Which phylogenic group includes all descendants of a common ancestor and
only the descendants of that ancestor? - CORRECT ANSWERS-monophyletic
When comparing trees with various hypotheses of evolutionary relationships
between a group of animals, the tree with _____ would be the strongest
candidate. - CORRECT ANSWERS-the fewest changes
A fossil's contribution to phylogenetic trees include: - CORRECT ANSWERS-all
of the above (time calibration, records of extinct species, correlation
between evolution and Earth history)
How are two different species most likely to evolve from one ancestral
species? - CORRECT ANSWERS-allopatrically, after the ancestral species has
split into two populations
Three populations of crickets look very similar, but the males have courtship
songs that sound different. What function would this difference in song likely
serve if the populations came in contact? - CORRECT ANSWERS-a pre-zygotic
isolating mechanism
A polytomy is a graphical depiction of what type of relationship between
groups? - CORRECT ANSWERS-the common ancestor node with no resolution
among descendant groups
The peppered moth provides a well-known example of natural selection. The
light-colored form of the moth was predominant in England before the
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