Which statement is correct about a bottleneck event? (1 point)
Responses
A bottleneck event decreases the gene pool of a population.
A bottleneck event increases the population of a species permanently.
A bottleneck event increases the gene pool of a population.
A bottleneck event decreases the population of a species permanently.
9 answers
A bottleneck event decreases the gene pool of a population.
Why are the gene pools of small populations reduced compared to those of larger populations? (1 point)
Responses:
inbreeding
lack of advantageous traits
lack of suitable mates
bottleneck events
Responses:
inbreeding
lack of advantageous traits
lack of suitable mates
bottleneck events
Bottleneck events.
A bottleneck event reduces the population of bears in one area by 80%. Which statement is correct about the bears’ gene pool? (1 point)
Responses
It has temporarily increased, so disadvantageous traits are more likely to be passed on.
It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
It has temporarily decreased, so disadvantageous traits are less likely to be passed on.
It has temporarily increased, so disadvantageous traits are less likely to be passed on.
Responses
It has temporarily increased, so disadvantageous traits are more likely to be passed on.
It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
It has temporarily decreased, so disadvantageous traits are less likely to be passed on.
It has temporarily increased, so disadvantageous traits are less likely to be passed on.
It has temporarily decreased, so disadvantageous traits are more likely to be passed on.
Which information helps scientists determine the survival probability of a population?(1 point)
Responses
the feeding habits of an individual in the population
the level of genetic variation in the population
the number of offspring of an individual in the population
the existence of natural selection in the population
Responses
the feeding habits of an individual in the population
the level of genetic variation in the population
the number of offspring of an individual in the population
the existence of natural selection in the population
the level of genetic variation in the population.
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