The correct definition of adaptive radiation is: when an ancestor species rapidly splits into different descendants due to environmental pressures.
What is the definition of adaptive radiation?(1 point)
Responses
when an ancestor species slowly splits into different organisms due to environmental pressures
when an ancestor species slowly splits into different organisms due to environmental pressures
when multiple populations of a species in different locations adapt in the same matter
when multiple populations of a species in different locations adapt in the same matter
when multiple populations of a species in the same location adapt in a different matter
when multiple populations of a species in the same location adapt in a different matter
when an ancestor species rapidly splits into different descendants due to environmental pressures
31 answers
What could this trend indicate about green coloration?
(1 point)
Responses
Brown is more advantageous overall.
Brown is more advantageous overall.
Green is currently disadvantageous.
Green is currently disadvantageous.
Green is currently advantageous.
Green is currently advantageous.
No conclusions can be inferred from the data.
(1 point)
Responses
Brown is more advantageous overall.
Brown is more advantageous overall.
Green is currently disadvantageous.
Green is currently disadvantageous.
Green is currently advantageous.
Green is currently advantageous.
No conclusions can be inferred from the data.
The most appropriate response to the trend regarding green coloration would be: No conclusions can be inferred from the data.
The specific location of an allele is called a(1 point)
Responses
chromosome.
chromosome.
locus.
locus.
gene.
gene.
haplotype.
Responses
chromosome.
chromosome.
locus.
locus.
gene.
gene.
haplotype.
The specific location of an allele is called a locus.
Which is a trait that could give an individual a competitive advantage within its species?(1 point)
Responses
a red fox that lives in a snowy forest.
a red fox that lives in a snowy forest.
a rabbit that is smaller than other rabbits in an area that has many small crevasses.
a rabbit that is smaller than other rabbits in an area that has many small crevasses.
a bird that flies poorly in a grassland ecosystem
a bird that flies poorly in a grassland ecosystem
a black snake that lives in a corn field
Responses
a red fox that lives in a snowy forest.
a red fox that lives in a snowy forest.
a rabbit that is smaller than other rabbits in an area that has many small crevasses.
a rabbit that is smaller than other rabbits in an area that has many small crevasses.
a bird that flies poorly in a grassland ecosystem
a bird that flies poorly in a grassland ecosystem
a black snake that lives in a corn field
A trait that could give an individual a competitive advantage within its species is: a rabbit that is smaller than other rabbits in an area that has many small crevasses. This smaller size could enable it to navigate the crevasses more effectively than larger rabbits, giving it an advantage in that specific environment.
What may cause two populations to develop different traits?(1 point)
Responses
migration
migration
passage of time
passage of time
evolution
evolution
interbreeding
Responses
migration
migration
passage of time
passage of time
evolution
evolution
interbreeding
The most appropriate response is: evolution. Evolution can cause two populations to develop different traits over time due to various factors such as natural selection, genetic drift, and mutation.
Question
Which other adaptation may be useful for living at high elevations?(1 point)
Responses
lighter skin
lighter skin
more hair
more hair
greater height
greater height
more sweat glands
Which other adaptation may be useful for living at high elevations?(1 point)
Responses
lighter skin
lighter skin
more hair
more hair
greater height
greater height
more sweat glands
The most useful adaptation for living at high elevations would be: more hair. This can help with insulation and protection against colder temperatures typically found at higher elevations.
Question
Which major event led to the eventual adaptive radiation of Darwin’s finches from one common ancestor (i.e., what is the primary reason they evolved)?(1 point)
Responses
increased rainfall
increased rainfall
differing availability and types of food resources
differing availability and types of food resources
drought
drought
different predators
Which major event led to the eventual adaptive radiation of Darwin’s finches from one common ancestor (i.e., what is the primary reason they evolved)?(1 point)
Responses
increased rainfall
increased rainfall
differing availability and types of food resources
differing availability and types of food resources
drought
drought
different predators
The primary reason that led to the eventual adaptive radiation of Darwin’s finches from one common ancestor is: differing availability and types of food resources. This variation in food sources drove the evolution of different beak shapes and sizes, allowing the finches to exploit different ecological niches.
Fish that live deeper in the ocean have eyes that are larger than fish that live in shallow waters. This suggests an adaptation to low light environments.
What evidence would support a causal explanation for this adaptation?
(1 point)
Responses
Comparative studies of eye size variations at different ocean depths.
Comparative studies of eye size variations at different ocean depths.
Observations of fish eyes in coral reefs and other shallow waters.
Observations of fish eyes in coral reefs and other shallow waters.
Experimental evidence showing that larger eyes enhance the ability to see in low light.
Experimental evidence showing that larger eyes enhance the ability to see in low light.
Statistical data connecting ocean depth and eye size.
What evidence would support a causal explanation for this adaptation?
(1 point)
Responses
Comparative studies of eye size variations at different ocean depths.
Comparative studies of eye size variations at different ocean depths.
Observations of fish eyes in coral reefs and other shallow waters.
Observations of fish eyes in coral reefs and other shallow waters.
Experimental evidence showing that larger eyes enhance the ability to see in low light.
Experimental evidence showing that larger eyes enhance the ability to see in low light.
Statistical data connecting ocean depth and eye size.
The evidence that would support a causal explanation for this adaptation is: Experimental evidence showing that larger eyes enhance the ability to see in low light. This would directly demonstrate how eye size provides a functional advantage in low-light environments.
It was determined that spiders make their webs from an innate ability because they(1 point)
Responses
make perfect webs the first time.
make perfect webs the first time.
learn how to make webs from other spiders.
learn how to make webs from other spiders.
involuntarily make webs based on repetitive motions.
involuntarily make webs based on repetitive motions.
require practice to perfect their webs.
Responses
make perfect webs the first time.
make perfect webs the first time.
learn how to make webs from other spiders.
learn how to make webs from other spiders.
involuntarily make webs based on repetitive motions.
involuntarily make webs based on repetitive motions.
require practice to perfect their webs.
The correct response is: make perfect webs the first time. This indicates that the ability to construct webs is innate rather than learned or developed through practice.
Bacteria are able to evolve easily, which is why antibiotic resistance is on the rise. Several factors contribute to the evolution of bacteria, except (1 point)
Responses
their DNA mutates when they divide, making new potential adaptations.
their DNA mutates when they divide, making new potential adaptations.
non-resistant bacteria die, and resistant bacteria survive.
non-resistant bacteria die, and resistant bacteria survive.
they have the shortest genetic material, which makes them the fastest to replicate.
they have the shortest genetic material, which makes them the fastest to replicate.
bacteria grow and multiply quickly, so they evolve rapidly.
Responses
their DNA mutates when they divide, making new potential adaptations.
their DNA mutates when they divide, making new potential adaptations.
non-resistant bacteria die, and resistant bacteria survive.
non-resistant bacteria die, and resistant bacteria survive.
they have the shortest genetic material, which makes them the fastest to replicate.
they have the shortest genetic material, which makes them the fastest to replicate.
bacteria grow and multiply quickly, so they evolve rapidly.
The statement that does not contribute to the evolution of bacteria is: they have the shortest genetic material, which makes them the fastest to replicate. While bacteria do replicate quickly, the length of genetic material does not directly correlate to their evolutionary rate. The other factors mentioned do contribute to bacterial evolution and antibiotic resistance.
Which factor leads to genetic drift rather than natural selection?(1 point)
Responses
Survivors pass on their adaptations.
Survivors pass on their adaptations.
A species has the potential to increase in number and overpopulate.
A species has the potential to increase in number and overpopulate.
Genetic variation is random and frequency changes each generation.
Genetic variation is random and frequency changes each generation.
Individuals with advantageous traits survive.
Responses
Survivors pass on their adaptations.
Survivors pass on their adaptations.
A species has the potential to increase in number and overpopulate.
A species has the potential to increase in number and overpopulate.
Genetic variation is random and frequency changes each generation.
Genetic variation is random and frequency changes each generation.
Individuals with advantageous traits survive.
The factor that leads to genetic drift rather than natural selection is: Genetic variation is random and frequency changes each generation. Genetic drift is a process that occurs due to random changes in allele frequencies within a population, especially in small populations, rather than through the selection of advantageous traits.
Which factor is abiotic?(1 point)
Responses
decrease in sunlight
decrease in sunlight
decrease in predators
decrease in predators
decrease in prey
decrease in prey
decrease in vegetation
Responses
decrease in sunlight
decrease in sunlight
decrease in predators
decrease in predators
decrease in prey
decrease in prey
decrease in vegetation
The factor that is abiotic is: decrease in sunlight. Abiotic factors are non-living components of an ecosystem, while the other options (predators, prey, and vegetation) are biotic factors, as they involve living organisms.
A new predator is introduced into an ecosystem. Over several generations, there is an increase in the speed of a prey species.
Which evidence would help support that this change is due to natural selection and not just a correlation?
(1 point)
Responses
Observations that faster prey have a higher survival rate.
Observations that faster prey have a higher survival rate.
Climate data showing no significant temperature changes in the ecosystem.
Climate data showing no significant temperature changes in the ecosystem.
Genetic analysis showing changes in genes of the prey.
Genetic analysis showing changes in genes of the prey.
Data showing that increased speed coincided with the predator’s introduction.
Which evidence would help support that this change is due to natural selection and not just a correlation?
(1 point)
Responses
Observations that faster prey have a higher survival rate.
Observations that faster prey have a higher survival rate.
Climate data showing no significant temperature changes in the ecosystem.
Climate data showing no significant temperature changes in the ecosystem.
Genetic analysis showing changes in genes of the prey.
Genetic analysis showing changes in genes of the prey.
Data showing that increased speed coincided with the predator’s introduction.
The evidence that would help support that this change is due to natural selection and not just a correlation is: Observations that faster prey have a higher survival rate. This indicates that faster individuals are more likely to survive and reproduce, providing a mechanism for natural selection to act on the prey population.
What is the difference between correlation and causation?(1 point)
Responses
Scientists use causation when researching ways that organisms are adapted or have undergone natural selection, but they do not use correlation for this reason.
Scientists use causation when researching ways that organisms are adapted or have undergone natural selection, but they do not use correlation for this reason.
Correlation is a relationship between two variables, while causation is when an event or action happens and it appears to make another event or action happen.
Correlation is a relationship between two variables, while causation is when an event or action happens and it appears to make another event or action happen.
Causation is a relationship between two variables, while correlation is when an event or action happens and it appears to make another event or action happen.
Causation is a relationship between two variables, while correlation is when an event or action happens and it appears to make another event or action happen.
Scientists use correlation when researching ways that organisms are adapted or have undergone natural selection, but they do not use causation for this reason.
Responses
Scientists use causation when researching ways that organisms are adapted or have undergone natural selection, but they do not use correlation for this reason.
Scientists use causation when researching ways that organisms are adapted or have undergone natural selection, but they do not use correlation for this reason.
Correlation is a relationship between two variables, while causation is when an event or action happens and it appears to make another event or action happen.
Correlation is a relationship between two variables, while causation is when an event or action happens and it appears to make another event or action happen.
Causation is a relationship between two variables, while correlation is when an event or action happens and it appears to make another event or action happen.
Causation is a relationship between two variables, while correlation is when an event or action happens and it appears to make another event or action happen.
Scientists use correlation when researching ways that organisms are adapted or have undergone natural selection, but they do not use causation for this reason.
The correct response is: Correlation is a relationship between two variables, while causation is when an event or action happens and it appears to make another event or action happen. This distinction clarifies that correlation indicates a relationship, whereas causation implies that one event directly influences another.
How are correlation and causation similar?(1 point)
Responses
They are both typically used to describe the way that most transitional fossils are created.
They are both typically used to describe the way that most transitional fossils are created.
They are both used to describe increases in different variables that occur one after another.
They are both used to describe increases in different variables that occur one after another.
They are both used to describe the similarities in different structures shared by species.
They are both used to describe the similarities in different structures shared by species.
They are both used to describe connections and influences between variables.
Responses
They are both typically used to describe the way that most transitional fossils are created.
They are both typically used to describe the way that most transitional fossils are created.
They are both used to describe increases in different variables that occur one after another.
They are both used to describe increases in different variables that occur one after another.
They are both used to describe the similarities in different structures shared by species.
They are both used to describe the similarities in different structures shared by species.
They are both used to describe connections and influences between variables.
The correct response is: They are both used to describe connections and influences between variables. This highlights that both correlation and causation identify relationships between different factors, although they represent different types of relationships.
Which statement is true?(1 point)
Responses
Antibiotics kill bacteria by damaging efflux pumps.
Antibiotics kill bacteria by damaging efflux pumps.
Antibiotics kill bacteria by creating toxic plasmids.
Antibiotics kill bacteria by creating toxic plasmids.
Antibiotics kill bacteria by increasing protein production.
Antibiotics kill bacteria by increasing protein production.
Antibiotics kill bacteria by attacking the cell wall.
Responses
Antibiotics kill bacteria by damaging efflux pumps.
Antibiotics kill bacteria by damaging efflux pumps.
Antibiotics kill bacteria by creating toxic plasmids.
Antibiotics kill bacteria by creating toxic plasmids.
Antibiotics kill bacteria by increasing protein production.
Antibiotics kill bacteria by increasing protein production.
Antibiotics kill bacteria by attacking the cell wall.
The true statement is: Antibiotics kill bacteria by attacking the cell wall. Many antibiotics, such as penicillin, work by inhibiting the synthesis of the bacterial cell wall, leading to cell death.
2 answers