BIOL 301 Exam Questions And Answers With Verified Updates 2025 Tests
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BIOL 301 Exam Questions And Answers With Verified Updates 2025 Tests
What is the most fundamental unit of ecology? ANS individual
What is the number of individuals per unit area? ANS Density
The paper you read entitled, "Effects of Predator Hunting Mode on Grassland Ecosystem Function" was...
BIOL 301 Exam Questions And Answers
What is the most fundamental unit of ecology? ANS individual
What is the number of individuals per unit area? ANS Density
The paper you read entitled, "Effects of Predator Hunting Mode on Grassland Ecosystem Function"
was an example of what kind of study? ANS ecosystem
When does a dynamic steady state occur? ANS When gains and losses are in balance
Ecology ANS scientific study of the abundance and distribution of organisms in relation to other
organisms and environmental conditions
Community ANS populations of species living together in a particular area
Fitness ANS survival and reproduction- greater fitness occurs when genes are likely to be passed
to the next generation and that phenotype will come to dominate
Sample ANS subset of a population, used to draw inferences about the population
Mesocosm ANS a small outdoor experimental system that examines environmental conditions
under controlled conditions
Give an example of a phenotype ANS color (of skin, hair)
There are 3 requirements for evolution to take place via natural selection. Please explain 1 of the 3
requirements ANS traits must have variation-not everyone will have the same traits and their
possible advantages or disadvantages
,Different organisms play diverse roles in ecological systems. Please pick an organisms and tell me
what role it plays. ANS Plants- produce oxygen for all living things (other plants and animals) to
survive
What voice and tense should you use when writing a scientific paper? ANS both passive and
active voices
Please rewrite the following sentence to be in an active voice: "The study was conducted in a 1.5 ha
meadow at the Yale-Myers Research Forest in north-eastern Connecticut USA." ANS We
conducted the study in a 1.5 ha meadow at the Yale-Myers Research Forest in north-eastern
Connecticut USA.
When you develop an experimental design for your study you need to consider many different things.
What are 2 of the many different things you may need to consider and why should they be
considered? ANS the method of collecting data because certain factors may influence or skew the
results differently leading to incorrect data. Also you need to consider how to statistically analyze the
data because there are many different ways to and some may be the wrong approach to finding what
exactly your experiment is looking for-each give different results
Scavengers ANS consume dead animals
Producers ANS convert chemical energy into resources
Competition ANS is when 2 organisms that depend on the same resource have a negative effect
on each other
Detritivores ANS break down dead organic matter into smaller particles
Predation ANS is when an organism kills and consumes an individual
Mixotrophs ANS can switch between being producers and consumers
, Which is NOT an adapatation that exploits the density of water?
a. a gas-filled swim bladder
b. droplets of water on algae
c. long, filamentous appendages
d. high percentages of fat ANS c
At what temperature does water reach its maximum density? ANS 4 degrees celcius
Aquatic organisms have developed streamlined shapes to adapt to what? ANS the viscosity of
water
The use of salt on roads in winter has led to what? ANS decreased survival of freshwater
organisms in nearby ponds
Mangroves grow on salt-laden coastal mudflats that an inundated daily by high tides. How do these
plants address problems of water acquisition and elimination of excess salts?
I. by maintaining high concentrations of organic solutes in their roots
II. by excluding salts from their roots by active transport
III. by actively excreting salt from glands on the surfaces of their leaves ANS I, II, and III
The dissolved oxygen levels in water did NOT require adaptation for
a. dolphins
b. sharks
c. squid
d. zooplankton ANS a
What is used to increase oxygen extraction? ANS countercurrent circulation
What prevents ice formation in blood and tissues of marine animals? ANS an increased
concentration of glycerol
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