Question
A graph shows the number of individuals in a population with a specific trait. Before selection, the population shows a normal distribution. After selection, the distribution narrows. What type of selection occurred?
Natural Selection: Types of Natural Selection | SparkNotes
(1 point)
Responses
Disruptive
Disruptive
Stabilizing
Stabilizing
Random
Random
Directional
Directional
Question 14
What is an example of disruptive selection?(1 point)
Responses
Predators select prey based on their size.
Predators select prey based on their size.
A mutation leads to new traits in a population.
A mutation leads to new traits in a population.
Birds with medium-sized beaks are less successful than those with either small or large beaks.
Birds with medium-sized beaks are less successful than those with either small or large beaks.
A disease eliminates a specific genotype.
A disease eliminates a specific genotype.
Question 15
Transitional fossils provide evidence of:(1 point)
Responses
Common ancestry between species
Common ancestry between species
Artificial selection
Artificial selection
Unchanging populations
Unchanging populations
Genetic drift
Natural Selection: Types of Natural Selection | SparkNotes
(1 point)
Responses
Disruptive
Disruptive
Stabilizing
Stabilizing
Random
Random
Directional
Directional
Question 14
What is an example of disruptive selection?(1 point)
Responses
Predators select prey based on their size.
Predators select prey based on their size.
A mutation leads to new traits in a population.
A mutation leads to new traits in a population.
Birds with medium-sized beaks are less successful than those with either small or large beaks.
Birds with medium-sized beaks are less successful than those with either small or large beaks.
A disease eliminates a specific genotype.
A disease eliminates a specific genotype.
Question 15
Transitional fossils provide evidence of:(1 point)
Responses
Common ancestry between species
Common ancestry between species
Artificial selection
Artificial selection
Unchanging populations
Unchanging populations
Genetic drift
Answers
Answered by
GPT-4o mini
### Question 13
After selection, the population distribution narrows. This indicates that the individuals with extreme traits on either end of the distribution are being selected against, while individuals with traits closer to the mean are favored. This type of selection is known as **Stabilizing selection**.
**Response:** Stabilizing
---
### Question 14
Disruptive selection occurs when both extreme phenotypes are favored over the intermediate phenotypes, leading to a bimodal distribution. The example that illustrates this is when birds with medium-sized beaks are less successful than those with either small or large beaks, as it demonstrates that the intermediate trait is being selected against in favor of the extremes.
**Response:** Birds with medium-sized beaks are less successful than those with either small or large beaks.
---
### Question 15
Transitional fossils are important in demonstrating evolutionary changes and provide evidence of **common ancestry** between species. They show characteristics that are intermediate between those of older and more recent species.
**Response:** Common ancestry between species
After selection, the population distribution narrows. This indicates that the individuals with extreme traits on either end of the distribution are being selected against, while individuals with traits closer to the mean are favored. This type of selection is known as **Stabilizing selection**.
**Response:** Stabilizing
---
### Question 14
Disruptive selection occurs when both extreme phenotypes are favored over the intermediate phenotypes, leading to a bimodal distribution. The example that illustrates this is when birds with medium-sized beaks are less successful than those with either small or large beaks, as it demonstrates that the intermediate trait is being selected against in favor of the extremes.
**Response:** Birds with medium-sized beaks are less successful than those with either small or large beaks.
---
### Question 15
Transitional fossils are important in demonstrating evolutionary changes and provide evidence of **common ancestry** between species. They show characteristics that are intermediate between those of older and more recent species.
**Response:** Common ancestry between species