Asked by mike
A population of lizards lives in a desert where the sand is light-colored. Over generations, more lizards have lighter scales. What is the most likely explanation for this change?
A. Lizards chose to lighten their scales to blend in with the sand. B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more. C. The environment forced all lizards to become light-colored. D. Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
A. Lizards chose to lighten their scales to blend in with the sand. B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more. C. The environment forced all lizards to become light-colored. D. Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Answers
Answered by
taha
A population of lizards lives in a desert where the sand is light-colored. Over generations, more lizards have lighter scales. What is the most likely explanation for this change?
A. Lizards chose to lighten their scales to blend in with the sand. B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more. C. The environment forced all lizards to become light-colored. D. Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Responses
Lizards chose to lighten their scales to blend in with the sand.
Lizards chose to lighten their scales to blend in with the sand.
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
The environment forced all lizards to become light-colored.
The environment forced all lizards to become light-colored.
Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
A. Lizards chose to lighten their scales to blend in with the sand. B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more. C. The environment forced all lizards to become light-colored. D. Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Responses
Lizards chose to lighten their scales to blend in with the sand.
Lizards chose to lighten their scales to blend in with the sand.
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
The environment forced all lizards to become light-colored.
The environment forced all lizards to become light-colored.
Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Answered by
tt
Haploid cells have one set of chromosomes (n); diploid cells have two sets of chromosomes (2n).
Responses
True
True
False
Responses
True
True
False
Answered by
y
A population of lizards lives in a desert where the sand is light-colored. Over generations, more lizards have lighter scales. What is the most likely explanation for this change?
A. Lizards chose to lighten their scales to blend in with the sand. B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more. C. The environment forced all lizards to become light-colored. D. Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Responses
Lizards chose to lighten their scales to blend in with the sand.
Lizards chose to lighten their scales to blend in with the sand.
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
The environment forced all lizards to become light-colored.
The environment forced all lizards to become light-colored.
Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
A. Lizards chose to lighten their scales to blend in with the sand. B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more. C. The environment forced all lizards to become light-colored. D. Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Responses
Lizards chose to lighten their scales to blend in with the sand.
Lizards chose to lighten their scales to blend in with the sand.
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more
The environment forced all lizards to become light-colored.
The environment forced all lizards to become light-colored.
Dark-colored lizards stopped reproducing because they didn’t want to pass on their traits.
Answered by
toji
A student designs an experiment to measure body temperature changes after exercise. Which observation would best support the claim that feedback mechanisms maintain homeostasis?
Responses
Body temperature rises and stays elevated for several hours.
Body temperature rises and stays elevated for several hours.
Body temperature rises, then sweating occurs, and temperature returns to normal.
Body temperature rises, then sweating occurs, and temperature returns to normal.
Body temperature decreases steadily during exercise.
Body temperature decreases steadily during exercise.
Body temperature remains unchanged regardless of activity
Responses
Body temperature rises and stays elevated for several hours.
Body temperature rises and stays elevated for several hours.
Body temperature rises, then sweating occurs, and temperature returns to normal.
Body temperature rises, then sweating occurs, and temperature returns to normal.
Body temperature decreases steadily during exercise.
Body temperature decreases steadily during exercise.
Body temperature remains unchanged regardless of activity
Answered by
GPT-5 mini
B. Predators only eat dark-colored lizards, so light-colored lizards survive and reproduce more.
This describes natural selection: heritable variation existed in scale color, and lighter individuals had higher survival (and reproductive) rates in the light sand, so alleles for light coloration increased in frequency over generations. Options A, C, and D imply purposeful or forced changes, which is not how evolution by natural selection works.
This describes natural selection: heritable variation existed in scale color, and lighter individuals had higher survival (and reproductive) rates in the light sand, so alleles for light coloration increased in frequency over generations. Options A, C, and D imply purposeful or forced changes, which is not how evolution by natural selection works.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.