PACIULLI FINAL BIO 181 NCSU EXAM
2024-2025 NEWEST ACTUAL EXAM AND
PRACTICE TEST QUESTIONS AND
DETAILED CORRECT ANSWERS |
A+GRADE STUDYGUIDE
what is endosymbiosis Correct Answer Endosymbiosis is
the process by which a protist engulfs a smaller organism,
like a single celled prokaryote, and gains the ability to
utilize that organisms helpful functions. For example, if a
protist engulfed a photosynthetic microorganism, the
protist would then be able to start making its own food
through photosynthesis. Scientists currently believe that
endosymbiosis gave way to the first mitochondria and
chloroplasts, since each of these organelles cannot be
recreated by the protists' (or whatever organism it may be
a part of) cells and has it's own cell membrane.
The life cycle of plants is called ___ . Correct Answer
alternation of generations
We said that protist feeding behavior could be categorized
in two main ways. Name one of them. Correct Answer
ingestive
You are puzzled because you are looking through a
microscope and see a single-celled organism, yet the label
on the slide says, "Eukarya." After some consideration,
,you realize that you are not looking at a protist, but rather
a/an... Correct Answer yeast
Parsimony suggests that traits that...are the best ones for
phylogenetic trees. Correct Answer evolved at one time
Bipedalism in humans and other hominids is _____ .
Correct Answer . synapomorphic
A _____________ group is a taxon (group of organisms)
which forms a clade, meaning that it consists of an
ancestral species and all its descendants. Correct Answer
monophyletic
A __________ group is a group of organisms that includes
an ancestor but not all of its descendants. Correct Answer
paraphyletic
____________ taxon is composed of unrelated organisms
descended from more than one ancestor. Correct Answer
Polyphyletic
Other than eukaryotes, name two main / primary
evolutionary branches (domains) Correct Answer archea
and eubacteria
Name one type of data that can be used to construct
phylogenies. Correct Answer morphology or
synapomorphies
,Ideally, when making phylogenetic trees, taxa should be
___ . Correct Answer monophyletic
One of the earliest evidence for life on earth comes from
mats of cyanobacterial cells that trapped mineral deposits
called _____ . Correct Answer stromatolites
Suppose that a biologist uses a time machine to collect
living material from two different time periods. Sample A is
4.5 billion years old, and sample B is 3.5 billion years old.
How would these samples differ? Correct Answer
Prokaryotic organisms would occur only in sample B.
Suppose that the same biologist also used the time
machine to collect other living material from two different
time periods. Sample A is 3.5 billion years old, and sample
B is 1.5 billion years old. How would these samples differ?
The Correct Answer is: Oxygen would be abundant in
sample B, but less in sample A.
To recreate early earth in the lab, Miller-Urey placed the
atmosphere over... Correct Answer water
I am spiral-shaped and I can cause diseases like Lyme's
and syphilis. It is difficult to kill me because I reproduce /
replicate rapidly. I am a(n)... Correct Answer bacteria
I can be a yummy truffle or morel. I can be used to make
Penicillin and perfumes. I may have a cup-like structure
and/or live in the arctic tundra. Who am I? Correct Answer
ascomycota
, As far as we can tell from the fossil record, earth existed
for approximately ___ billion years before the first signs of
life appeared. Correct Answer 1
moving towards or away from a stimulus Correct Answer
taxis
A group that doesn't share any traits with the other grouos
Correct Answer Outgroup
Preferred explanation of observed data is the simplistic
explanation Correct Answer Principle of parsimony
Several species of Caribbean anoles living in Florida do
not directly compete for food because each species hunts
prey in a different part of the forest: tree tops, tree trunks
or along the ground. Correct Answer resource partitioning
Two major predictors of biome distribution are... Correct
Answer temperature and precipitation
Scientists know that fish in an old, shrinking pond are
getting close to their carrying capacity because they
plotted the data they collected. Their curve most likely
looked like... Correct Answer the letter s
______ water is high in nutrients, and densely populated
with algae and plant material. Correct Answer eutrophic
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