How did the Industrial Revolution impact the population of peppered moths in Britain? (1 point)
Responses
The Industrial Revolution caused the proportions of each color morph in the population to become equal.
The Industrial Revolution caused the proportions of each color morph in the population to become equal.
The dark-colored moths became more common.
The dark-colored moths became more common.
The Industrial Revolution caused the proportions of each color morph in the population to become unequal.
The Industrial Revolution caused the proportions of each color morph in the population to become unequal.
The light-colored moths became more common.
The dark-colored moths became more common.
There are two varieties in a population of squirrels: short tails and long tails. Long-tailed squirrels are better at jumping and balancing in trees. Scientists observe that over the span of 100 years, the proportion of the population with long tails increases from 10% to 60%. Which statement is most likely? (1 point)
Responses
The proportion of long-tailed squirrels may have increased due to increased food availability.
The proportion of long-tailed squirrels may have increased due to increased food availability.
The proportion of short-tailed squirrels may have decreased due to decreased food availability.
The proportion of short-tailed squirrels may have decreased due to decreased food availability.
The proportion of short-tailed squirrels may have decreased due to an increase in trees.
The proportion of short-tailed squirrels may have decreased due to an increase in trees.
The proportion of long-tailed squirrels may have increased due to a decrease in trees.
The proportion of long-tailed squirrels may have increased due to a decrease in trees.
The proportion of long-tailed squirrels may have increased due to natural selection favoring individuals with this trait, as they have an advantage in the tree-dwelling environment.
Why is the cheetah gene pool small today? (1 point)
Responses
inbreeding in zoos
inbreeding in zoos
lack of advantageous traits
lack of advantageous traits
multiple bottleneck events
multiple bottleneck events
poor adaptability
poor adaptability
multiple bottleneck events.
After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. Which statement is correct about the rabbits? (1 point)
Responses
They are as likely to survive environmental changes because their population has recovered.
They are as likely to survive environmental changes because their population has recovered.
They are more likely to survive environmental changes because of the bottleneck event.
They are more likely to survive environmental changes because of the bottleneck event.
They are as likely to survive environmental changes because they survived the bottleneck event.
They are as likely to survive environmental changes because they survived the bottleneck event.
They are less likely to survive environmental changes because of the bottleneck event.
They are less likely to survive environmental changes because of the bottleneck event.
They are less likely to survive environmental changes because of the bottleneck event.
Facts or data are types of(1 point)
Responses
reasoning.
reasoning.
evidence.
evidence.
models.
models.
explanations.
evidence.
What change is observed in a distribution curve for a trait affected by directional selection?(1 point)
Responses
It shifts to the left.
It shifts to the left.
It shifts to the right.
It shifts to the right.
It shifts to the right and to the left.
It shifts to the right and to the left.
It shifts either to the right or to the left.