A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

In a given environment, moderately colored lizards are better able to hide from predators than light-colored or dark-colored lizards. Over time, both light- and dark-colored lizards are selected, increasing the frequency of the moderately colored phenotype. This is an example of what type of selection? a.artificial selection b.directional selection c.disruptive selection d.stabilized selection

  • This Question is Open
  1. BioEpic
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Let me explain the types of selection:

  2. BioEpic
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Artificial selection is when things created or done by humans put selective pressure on the environment. That is the least likely choice here, so you can eliminate it.

  3. BioEpic
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Directional selection makes the number of organisms at one end of the spectrum much larger than the others. Here this is not happening, so this answer choice is incorrect.

  4. BioEpic
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Disruptive selection makes the number of organisms at both ends of the spectrum much larger, but reduces the number of the organisms in the middle. This is the exact opposite of what we want.

  5. BioEpic
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    This leaves us with one answer choice: D - stabilizing selection. Stabilizing selection occurs when the number of organisms at the middle of the spectrum become much larger, reducing the number of organisms at the far ends of the spectrum. Because the number of organisms in the center (moderately colored) become more common, the frequency of the moderately colored phenotype increases.

  6. BioEpic
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Therefore, D is the right answer. I hope this helped, @DoShKa_SyRiA ! Here is a diagram for reference: http://www.blc.arizona.edu/courses/schaffer/182/Types-of-Selection.jpeg

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.