Question
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Question 1
A)What is the main mechanism by which evolution occurs?(1 point)
Responses
Artificial selection
Artificial selection
Genetic drift
Genetic drift
Natural selection
Natural selection
Gene flow
Gene flow
B)Which of the following are examples of natural selection? Choose all that apply(3 points)
Responses
A population of giraffes neck length has increased to reach higher leaves for food
A population of giraffes neck length has increased to reach higher leaves for food
A population of rabbits changes color over time due to a change in the environment
A population of rabbits changes color over time due to a change in the environment
A population of fish experiences random changes in its genetic makeup
A population of fish experiences random changes in its genetic makeup
A population of moths living in areas with high pollution change color to blend in with their environment
A population of moths living in areas with high pollution change color to blend in with their environment
C)The concept of fitness in evolution is most accurately measured by:(1 point)
Responses
The number of offspring an individual can produce
The number of offspring an individual can produce
The number of years an individual survives
The number of years an individual survives
The total weight of an individual in a population
The total weight of an individual in a population
The individual's ability to successfully reproduce and pass on its genes to future generations
The individual's ability to successfully reproduce and pass on its genes to future generations
D)How does evolution lead to changes in a population over time?(1 point)
Responses
By introducing random changes in genetic code that are equally beneficial
By introducing random changes in genetic code that are equally beneficial
By eliminating all genetic variation in the population
By eliminating all genetic variation in the population
By preventing any genetic variation from occurring in the population
By preventing any genetic variation from occurring in the population
Through the accumulation of advantageous traits that increase fitness
Through the accumulation of advantageous traits that increase fitness
E)What is the primary difference between homologous and analogous structures?(1 point)
Responses
Homologous structures are always used for the same purpose, whereas analogous structures serve different functions
Homologous structures are always used for the same purpose, whereas analogous structures serve different functions
Homologous structures are always vestigial, whereas analogous structures are always functional
Homologous structures are always vestigial, whereas analogous structures are always functional
Homologous structures are inherited from a common ancestor, whereas analogous structures do not share a common origin
Homologous structures are inherited from a common ancestor, whereas analogous structures do not share a common origin
Homologous structures are found in unrelated species, while analogous structures are found in species with common ancestry
Homologous structures are found in unrelated species, while analogous structures are found in species with common ancestry
F)What is a mutation with respect to natural selection and evolution?(1 point)
Responses
A change in an organism's behavior
A change in an organism's behavior
A change in an organism's environment
A change in an organism's environment
A change in the population size for a specific organism
A change in the population size for a specific organism
A change in the DNA sequence of an organism
A change in the DNA sequence of an organism
G)Which of the following best explains how the finches on the Galapagos Islands demonstrate natural selection?(1 point)
Responses
Finches with beak shapes suited to their specific food sources survived and reproduced more successfully.
Finches with beak shapes suited to their specific food sources survived and reproduced more successfully.
All of the finches have the same beak shape because they eat the same food.
All of the finches have the same beak shape because they eat the same food.
The finches migrated to the Galapagos Islands from different continents
The finches migrated to the Galapagos Islands from different continents
The finches on the islands do not exhibit any variation in their beak shapes.
The finches on the islands do not exhibit any variation in their beak shapes.
H)The forelimbs of humans, bats, and whales are examples of:(1 point)
Responses
Homologous structures
Homologous structures
Analogous structures
Analogous structures
Vestigial structures
Vestigial structures
Genetic mutations
Genetic mutations
Question 1
A)What is the main mechanism by which evolution occurs?(1 point)
Responses
Artificial selection
Artificial selection
Genetic drift
Genetic drift
Natural selection
Natural selection
Gene flow
Gene flow
B)Which of the following are examples of natural selection? Choose all that apply(3 points)
Responses
A population of giraffes neck length has increased to reach higher leaves for food
A population of giraffes neck length has increased to reach higher leaves for food
A population of rabbits changes color over time due to a change in the environment
A population of rabbits changes color over time due to a change in the environment
A population of fish experiences random changes in its genetic makeup
A population of fish experiences random changes in its genetic makeup
A population of moths living in areas with high pollution change color to blend in with their environment
A population of moths living in areas with high pollution change color to blend in with their environment
C)The concept of fitness in evolution is most accurately measured by:(1 point)
Responses
The number of offspring an individual can produce
The number of offspring an individual can produce
The number of years an individual survives
The number of years an individual survives
The total weight of an individual in a population
The total weight of an individual in a population
The individual's ability to successfully reproduce and pass on its genes to future generations
The individual's ability to successfully reproduce and pass on its genes to future generations
D)How does evolution lead to changes in a population over time?(1 point)
Responses
By introducing random changes in genetic code that are equally beneficial
By introducing random changes in genetic code that are equally beneficial
By eliminating all genetic variation in the population
By eliminating all genetic variation in the population
By preventing any genetic variation from occurring in the population
By preventing any genetic variation from occurring in the population
Through the accumulation of advantageous traits that increase fitness
Through the accumulation of advantageous traits that increase fitness
E)What is the primary difference between homologous and analogous structures?(1 point)
Responses
Homologous structures are always used for the same purpose, whereas analogous structures serve different functions
Homologous structures are always used for the same purpose, whereas analogous structures serve different functions
Homologous structures are always vestigial, whereas analogous structures are always functional
Homologous structures are always vestigial, whereas analogous structures are always functional
Homologous structures are inherited from a common ancestor, whereas analogous structures do not share a common origin
Homologous structures are inherited from a common ancestor, whereas analogous structures do not share a common origin
Homologous structures are found in unrelated species, while analogous structures are found in species with common ancestry
Homologous structures are found in unrelated species, while analogous structures are found in species with common ancestry
F)What is a mutation with respect to natural selection and evolution?(1 point)
Responses
A change in an organism's behavior
A change in an organism's behavior
A change in an organism's environment
A change in an organism's environment
A change in the population size for a specific organism
A change in the population size for a specific organism
A change in the DNA sequence of an organism
A change in the DNA sequence of an organism
G)Which of the following best explains how the finches on the Galapagos Islands demonstrate natural selection?(1 point)
Responses
Finches with beak shapes suited to their specific food sources survived and reproduced more successfully.
Finches with beak shapes suited to their specific food sources survived and reproduced more successfully.
All of the finches have the same beak shape because they eat the same food.
All of the finches have the same beak shape because they eat the same food.
The finches migrated to the Galapagos Islands from different continents
The finches migrated to the Galapagos Islands from different continents
The finches on the islands do not exhibit any variation in their beak shapes.
The finches on the islands do not exhibit any variation in their beak shapes.
H)The forelimbs of humans, bats, and whales are examples of:(1 point)
Responses
Homologous structures
Homologous structures
Analogous structures
Analogous structures
Vestigial structures
Vestigial structures
Genetic mutations
Genetic mutations
Answers
Answered by
GPT-4o mini
Here are the responses to your questions:
**Question 1**
A) What is the main mechanism by which evolution occurs?
**Response:** Natural selection
B) Which of the following are examples of natural selection? Choose all that apply.
**Responses:**
- A population of giraffes neck length has increased to reach higher leaves for food
- A population of rabbits changes color over time due to a change in the environment
- A population of moths living in areas with high pollution change color to blend in with their environment
C) The concept of fitness in evolution is most accurately measured by:
**Response:** The individual's ability to successfully reproduce and pass on its genes to future generations
D) How does evolution lead to changes in a population over time?
**Response:** Through the accumulation of advantageous traits that increase fitness
E) What is the primary difference between homologous and analogous structures?
**Response:** Homologous structures are inherited from a common ancestor, whereas analogous structures do not share a common origin
F) What is a mutation with respect to natural selection and evolution?
**Response:** A change in the DNA sequence of an organism
G) Which of the following best explains how the finches on the Galapagos Islands demonstrate natural selection?
**Response:** Finches with beak shapes suited to their specific food sources survived and reproduced more successfully.
H) The forelimbs of humans, bats, and whales are examples of:
**Response:** Homologous structures
Feel free to reach out if you have any more questions!
**Question 1**
A) What is the main mechanism by which evolution occurs?
**Response:** Natural selection
B) Which of the following are examples of natural selection? Choose all that apply.
**Responses:**
- A population of giraffes neck length has increased to reach higher leaves for food
- A population of rabbits changes color over time due to a change in the environment
- A population of moths living in areas with high pollution change color to blend in with their environment
C) The concept of fitness in evolution is most accurately measured by:
**Response:** The individual's ability to successfully reproduce and pass on its genes to future generations
D) How does evolution lead to changes in a population over time?
**Response:** Through the accumulation of advantageous traits that increase fitness
E) What is the primary difference between homologous and analogous structures?
**Response:** Homologous structures are inherited from a common ancestor, whereas analogous structures do not share a common origin
F) What is a mutation with respect to natural selection and evolution?
**Response:** A change in the DNA sequence of an organism
G) Which of the following best explains how the finches on the Galapagos Islands demonstrate natural selection?
**Response:** Finches with beak shapes suited to their specific food sources survived and reproduced more successfully.
H) The forelimbs of humans, bats, and whales are examples of:
**Response:** Homologous structures
Feel free to reach out if you have any more questions!