What statement accurately describes the relationship between variations and fitness?(1 point)
Responses
Fitness can lead to either an increase or decrease in variations.
Fitness can lead to either an increase or decrease in variations.
Variations always increase fitness.
Variations always increase, , fitness.
Fitness always increases variations.
Fitness always increases variations.
Variations can lead to either an increase or decrease in fitness.
Variations can lead to either an increase or decrease in fitness.
What is the name given to an observable characteristic of an organism?(1 point)
Responses
genotype
genotype
genome
genome
mutation
mutation
phenotype
phenotype
phenotype
Which statement is correct about the population of peppered moths in modern Britain? (1 point)
Responses
The dark-colored moths are most common due to antipollution regulations.
The dark-colored moths are most common due to antipollution regulations.
The dark-colored moths are most common due to dark-colored tree bark.
The dark-colored moths are most common due to dark-colored tree bark.
The light-colored moths are most common due to light-colored tree bark.
The light-colored moths are most common due to light-colored tree bark.
The light-colored moths are most common due to antipollution regulations.
The dark-colored moths are most common due to antipollution regulations.
Which variety of mouse is more likely to survive in a dry desert? (1 point)
Responses
a mouse that has a shorter tail
a mouse that has a shorter tail
a mouse that needs less water
a mouse that needs less water
a mouse that has a longer tail
a mouse that has a longer tail
a mouse that needs more water
a mouse that needs less water
Which genetic variation is least important among a population of frogs living in a rainy environment?(1 point)
Responses
need for wetlands during tadpole development
need for wetlands during tadpole development
ability to produce mucus to keep skin moist
ability to produce mucus to keep skin moist
need for high humidity for survival
need for high humidity for survival
ability to survive with less food
ability to survive with less food
ability to survive with less food
Which explanation is accurate about the survival and reproduction of a population?(1 point)
Responses
If there are a limited variety of traits in a population, most traits will be a good fit with the environment.
If there are a limited variety of traits in a population, most traits will be a good fit with the environment.
If there are a wide variety of traits in a population, it is more likely that some individuals will be able to survive and reproduce.
If there are a wide variety of traits in a population, it is more likely that some individuals will be able to survive and reproduce.
If there are a limited variety of traits in a population, it is more likely that some individuals will be able to survive and reproduce.
If there are a limited variety of traits in a population, it is more likely that some individuals will be able to survive and reproduce.
If there are a wide variety of traits in a population, most traits will be a good fit with the environment.
If there are a wide variety of traits in a population, it is more likely that some individuals will be able to survive and reproduce.
Which term means making sense of information?(1 point)
Responses
investigation
investigation
explanation
explanation
evidence
evidence
reasoning
reasoning
How does a distribution curve of body lengths for a population of fish change after a predator preys on both extremes of body length (short and long)? (1 point)
Responses
The curve shifts to the right.
The curve shifts to the right.
The curve becomes narrower and taller.
The curve becomes narrower and taller.
The curve separates with a dip in the middle.
The curve separates with a dip in the middle.
The curve shifts to the left.
The curve becomes narrower and taller.
Which is most likely an example of selective breeding?(1 point)
Responses
developing salmon that grow more quickly in order to increase yields
developing salmon that grow more quickly in order to increase yields
creating rice that contains more vitamin A for health purposes
creating rice that contains more vitamin A for health purposes
modifying bacteria for medical uses like producing insulin
modifying bacteria for medical uses like producing insulin
raising chickens and having larger ones reproduce in order to produce more meat
raising chickens and having larger ones reproduce in order to produce more meat