Consider the following scenario:

Question

Consider the following scenario:

In a muddy lake environment, some fish have brown scales. Most fish, however, have silver scales. Predators have a harder time seeing the fish with brown scales.

Which term best describes the brown scales?

(1 point)
Responses

inactivated gene
inactivated gene

new mutation
new mutation

advantageous trait
advantageous trait

predominant phenotype
predominant phenotype

Answer 1

advantageous trait

Answer 2

How did the Industrial Revolution impact the population of peppered moths in Britain? (1 point)

Responses

The dark-colored moths became more common.
The dark-colored moths became more common.

The light-colored moths became more common.
The light-colored moths became more common.

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 Industrial Revolution caused the proportions of each color morph in the population to become unequal.

Answer 3

The dark-colored moths became more common.

Answer 4

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 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 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.

Answer 5

The proportion of long-tailed squirrels may have increased due to their advantageous trait of better jumping and balancing ability, which could have increased their chances of survival and reproduction.

Answer 6

The term that best describes the brown scales in this scenario is "advantageous trait." An advantageous trait is a characteristic or feature that gives an organism an advantage in its environment, increasing its chances of survival and reproduction. In this case, the brown scales provide an advantage to the fish as they make it harder for predators to see them in the muddy lake environment.