The extremophile that can thrive in the environment of Utah’s Great Salt Lake, which has a large amount of salt, is halophiles. Halophiles are organisms that thrive in high-salinity environments.
Utah’s Great Salt Lake has an extraordinarily large amount of salt. The water is basic, and oxygen is present. Which extremophile can thrive in this environment?(1 point)
Responses
acidophiles
acidophiles
anaerobes
anaerobes
endoliths
endoliths
halophiles
11 answers
How would the absence of a standardized taxonomic system affect scientific communication?(1 point)
Responses
It would create confusion as scientists tried to accurately discuss and compare organisms.
It would create confusion as scientists tried to accurately discuss and compare organisms.
It would lead to clearer communication as scientists could use common names.
It would lead to clearer communication as scientists could use common names.
It would enhance research as scientists develop personal naming systems for their discoveries.
It would enhance research as scientists develop personal naming systems for their discoveries.
It would increase collaboration as scientists worked together to identify organisms.
Responses
It would create confusion as scientists tried to accurately discuss and compare organisms.
It would create confusion as scientists tried to accurately discuss and compare organisms.
It would lead to clearer communication as scientists could use common names.
It would lead to clearer communication as scientists could use common names.
It would enhance research as scientists develop personal naming systems for their discoveries.
It would enhance research as scientists develop personal naming systems for their discoveries.
It would increase collaboration as scientists worked together to identify organisms.
The absence of a standardized taxonomic system would affect scientific communication by creating confusion as scientists tried to accurately discuss and compare organisms. A standardized system helps ensure that scientists are using the same names and classifications for organisms, allowing for clear communication and comparison across different research and studies.
A student observes an organism through a microscope. She notices that it has a unicellular structure, a nucleus, and moves using cilia.
Based on these characteristics, how should the organism be classified?
(1 point)
Responses
As Bacteria because it is unicellular.
As Bacteria because it is unicellular.
As a Plantae because it has a nucleus.
As a Plantae because it has a nucleus.
As a Fungi because it moves using cilia.
As a Fungi because it moves using cilia.
As a Protista because it is unicellular with a nucleus.
Based on these characteristics, how should the organism be classified?
(1 point)
Responses
As Bacteria because it is unicellular.
As Bacteria because it is unicellular.
As a Plantae because it has a nucleus.
As a Plantae because it has a nucleus.
As a Fungi because it moves using cilia.
As a Fungi because it moves using cilia.
As a Protista because it is unicellular with a nucleus.
Based on the characteristics described—unicellular structure, presence of a nucleus, and movement using cilia—the organism should be classified as a Protista because it is unicellular with a nucleus. Protists are a diverse group of eukaryotic microorganisms, and many of them are unicellular.
As classification systems evolved, scientists shifted from using dichotomous keys and only physical characteristics. They now incorporate genetic information and evolutionary relationships when classifying organisms.
A hypothetical organism was previously grouped based on its plant-like appearance, but genetic testing has revealed that it is more closely related to bacteria.
How does this shift affect this organism’s classification?
(1 point)
Responses
The organism’s classification may not change since the dichotomous keys do not change.
The organism’s classification may not change since the dichotomous keys do not change.
The organism’s classification would not change since dichotomous keys rely on physical traits first
The organism’s classification would not change since dichotomous keys rely on physical traits first
The organism would remain classified with plants since it has already been classified as a plant
The organism would remain classified with plants since it has already been classified as a plant
The organism would be reclassified as bacteria since classification is now more dependent on genetic testing.
A hypothetical organism was previously grouped based on its plant-like appearance, but genetic testing has revealed that it is more closely related to bacteria.
How does this shift affect this organism’s classification?
(1 point)
Responses
The organism’s classification may not change since the dichotomous keys do not change.
The organism’s classification may not change since the dichotomous keys do not change.
The organism’s classification would not change since dichotomous keys rely on physical traits first
The organism’s classification would not change since dichotomous keys rely on physical traits first
The organism would remain classified with plants since it has already been classified as a plant
The organism would remain classified with plants since it has already been classified as a plant
The organism would be reclassified as bacteria since classification is now more dependent on genetic testing.
The shift in classification based on genetic testing reveals that the organism is more closely related to bacteria, so the organism would be reclassified as bacteria since classification is now more dependent on genetic testing. This change reflects the evolving understanding of evolutionary relationships among organisms, moving beyond solely physical characteristics.
Consider the factors that affect the carrying capacity of a fish population in a small pond, and one in a large ocean bay.
Which statement accurately reflects the significance of factors affecting the carrying capacity based on the scale of the ecosystem?
(1 point)
Responses
Food availability has the same impact on carrying capacity for both the pond and the ocean bay.
Food availability has the same impact on carrying capacity for both the pond and the ocean bay.
Overfishing has a more significant impact on the carrying capacity of the ocean bay than the pond.
Overfishing has a more significant impact on the carrying capacity of the ocean bay than the pond.
Pollution affects the carrying capacity of the pond more than the ocean bay.
Pollution affects the carrying capacity of the pond more than the ocean bay.
Seasonal temperature changes have a larger impact on the carrying capacity of the ocean bay due to its size.
Which statement accurately reflects the significance of factors affecting the carrying capacity based on the scale of the ecosystem?
(1 point)
Responses
Food availability has the same impact on carrying capacity for both the pond and the ocean bay.
Food availability has the same impact on carrying capacity for both the pond and the ocean bay.
Overfishing has a more significant impact on the carrying capacity of the ocean bay than the pond.
Overfishing has a more significant impact on the carrying capacity of the ocean bay than the pond.
Pollution affects the carrying capacity of the pond more than the ocean bay.
Pollution affects the carrying capacity of the pond more than the ocean bay.
Seasonal temperature changes have a larger impact on the carrying capacity of the ocean bay due to its size.
The statement that accurately reflects the significance of factors affecting the carrying capacity based on the scale of the ecosystem is: Overfishing has a more significant impact on the carrying capacity of the ocean bay than the pond.
In larger ecosystems like an ocean bay, the impact of overfishing can be more pronounced due to the larger fish populations and different dynamics in species interactions compared to a smaller, more contained environment like a pond.
Which is a factor that is not easily observed that affects the carrying capacity for fish in a pond?(1 point)
Responses
amount of rainfall
amount of rainfall
amount of dissolved oxygen
amount of dissolved oxygen
the amount of space organisms have
the amount of space organisms have
amount of direct sunlight
Responses
amount of rainfall
amount of rainfall
amount of dissolved oxygen
amount of dissolved oxygen
the amount of space organisms have
the amount of space organisms have
amount of direct sunlight
The factor that is not easily observed but affects the carrying capacity for fish in a pond is amount of dissolved oxygen. While factors like rainfall, space, and sunlight can be more readily observed, dissolved oxygen levels typically require testing to measure accurately, making it less observable.
1 answer