NRES 103 Final Exam 2023, Verified Solution
12,000 years ago
The last glacier withdrew from North America about
Niagara Falls
What prevented water-bound organisms from migrating from the ocean to the upper Great Lakes?
It focuses on trophic relationships as a network
Rather than a food chai...
000 years ago the last glacier withdrew from north america about niagara falls what prevented water bound organisms from migrating from the ocean to the
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NRES 103 Final Exam 2023, Verified Solution
12,000 years ago
The last glacier withdrew from North America about
Niagara Falls
What prevented water-bound organisms from migrating from the ocean to the upper
Great Lakes?
It focuses on trophic relationships as a network
Rather than a food chain, it's more accurate to think in terms of a food web because
Downdrafts
Which of the following is not a feature that the Great Lakes share with the oceans?
Downdrafts, waves, upwelling, currents
Rising land surface after the glacier's retreat
The film clip "The Rise and Fall of the Great Lakes" describes a number of geologic
phenomena that have changed the lakes over time. One of these has to do with the
transition from a northerly outflow of Great Lakes water to a southerly course. This
transition was caused by
The stormiest
According to the film "What's So Great About the Great Lakes", of the five lakes,
Superior is not:
The deepest, stormiest, coldest, clearest
It's quite large yet eats small prey items
Who eats who in lakes is not necessarily linear, as exemplified by the lake sturgeon
because
Outflow
Rain, snow, and surface runoff from streams and rivers add water to the Great Lakes,
but this is offset by
Human ignorance
At this point in time, what is the biggest problem facing the Great Lakes?
20%
How much of the planet's available freshwater is found in the Great Lakes?
Water quality
Turnover of water, or mixing, in lakes is important in terms of maintaining
The sun
All energy is derived from
They are geographically concentrated, connectivity, the location, all of the above
Which of the following factors contribute to the uniqueness of the Great Lakes?
Trophic
The concept of a food chain is all about what type of relationships?
Elevation
The west-to-east flow of the Great Lakes is due to the differences in
Seiche
An extreme form of wave action in the Great Lakes that is associated with rapid
changed in wind and barometric pressure is known as a
They're actually one lake
There was a mistake make in naming Lakes Michigan and Huron. What was it?
, Erie
What is the shallowest of the Great Lakes?
The Atlantic Ocean
At one point, the Great Lakes were all connected to
The salt concentration of Lake Michigan has been steadily increasing over the
last 1000 years
Which of the following does not serve as an example of the dynamic nature of the Great
Lakes over geographic time?
Global connectivity
In recent decades, what is the primary factor that has led to an exponential increase in
the movement of invasive species?
Encountered impassible rapids
The firs European to explore the St. Lawrence River was Jacques Cartier, but after
1000 miles he had to turn back because
The lakes are relatively young
There have been a number of unintended environmental consequences that have
adversely affected the lakes once they were connected to one another and to the
Atlantic Ocean. The reason is that
Lacking in some ways but equal or superior in others
Compared to the Europeans, the Woodland Culture was
By humans
Most invasive species are introduced
Invasive tend to cause negative environmental consequences
A key difference between non-native (or exotic) species and invasive species is that
Than the Panama and Suez Canal's combines
On an annual basis, the Soo Locks handle more ships and more tonnage
All the above
The lamprey moved slowly through Lake Erie because
Through the Erie Canal
It's thought that the lampreys first entered Lake Ontario
Dynamic
In nature, ecosystems are
The creeks where lampreys nest
Vernon Applegate was able to help reduce lamprey populations by focusing on
Preying on their young and outcompeting them for food
The alewife came to dominate native fish in the Great Lakes by
Warmer and shallower
There were fewer alewives in Lake Erie because, compared to the upper lakes, it is
Were reproducing in the wild in prodigious numbers
Fisheries managers were surprised to learn that the chinook salmon
Data
In the scientific method, predictions are generated from hypothesis, then tested with
With observations
The scientific method is initiated
Accommodated longer and wider ships
Compared to the Erie Canal, the Welland Canal
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