BIOL 1020 Final Exam Latest 2025 Complete Question And
Answer (Verified Exam) Foundations Of Biodiversity
Which factor could have prevented the bubonic plague in Europe?
a. antimalarial drugs
b. increased crop yields
c. the use of fertilizer
d. antibiotics
d. antibiotics
If an experimental design includes systematic variation it means that:
a. across experimental units, independent variables are changed in such a way that the
separate effects of each can be discerned
b. the experiment is repeated to ensure conclusions aren't drawn from a single
unusual result
c. changes in only one dependent variable are being observed and recorded
d. any confounding variables, which may influence the outcome of an experiment, are
held constant
a. across experimental units, independent variables are changed in such a way that the
separate effects of each can be discerned
Ecological relationships reflect the _____ traits of organisms in nature.
behavioural, physiological, and biomechanical
,When carrying out a controlled experiment, it is important to:
change only one variable at a time
If you were a conservation biologist in charge of the recovery plans for an endangered
species, which would you prefer to find within that species: an even distribution of age
classes or a pyramid-shaped age distribution? why?
A pyramid-shaped distribution, because this means the population will grow.
When a population is small relative to its carrying capacity, its growth will be:
Exponential
.
Which one of the types of organisms most closely resembles the first cell on earth?
a. plant cells
b. algae
c. bacteria
d. fungi
c. bacteria
,With humans making up such a small percentage of life on Earth, which of the
following represents the rationale behind spending a disproportionate amount of
scientific research studying humans?
1. Our role in the ecosystem needs to be understood in order to plan for our future.
2. All of the above are reasons for spending a disproportionate amount of scientific
research studying humans.
3. Humans are interested in learning how their own bodies function.
4. The more that is discovered about humans, the more likely it is that disease can be
combatted.
5. Humans are curious about their origins.
2. all of the above are reasons for spending a disproportionate amount of scientific
research studying humans
A boy observes a robin outside of his window. He notices the robin repeatedly cocks its
head to one side before pecking the ground. The boy suspects that when the robin
cocks its head it is actually listening for worms or insects underground.
If the boy notes that a single robin routinely catches a worm after cocking its head,
would this observation prove his hypothesis to be correct?
No, this observation would only support the boy's hypothesis but not prove it.
A population of 20 butterflies colonizes a new area with no predators and a number of
flower species large enough to support a butterfly population of 200 individuals. In the
first 2 years in the new area, the growth curve for this butterfly population will show:
Exponential growth because the colonizing population size is far below the carrying
capacity
, A hypothesis is considered a theory when the:
a. hypothesis has been revised many times
b. results of a single experiment support the hypothesis
c. results of several experiments support the hypothesis
d. results of several experiments do no support the hypothesis
c. results of several experiments support the hypothesis
A town has several lakes connected by small streams or creeks. All the trout within a
single lake are considered a(n) ____. The trout in all of the lakes constitutes a(n) ______.
a. equilibrium population, corridor population
b. local population, metapopulation
c. local population, corridor population
d. equilibrium population, metapopulation
b. local population, metapopulation
If having large numbers of offspring results in high fitness, why do females of all
species not have very large numbers of offspring?
Female reproduction is limited by the amount of energy a female can devote to
reproduction in any one season.
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