Biology Midyear Exam 2024: Dependent Variable and Experimental Setup
9 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following best explains how resistance to cyanide spread in the scale insect population?

  • Insects without a resistance gene underwent mutation upon contact with the cyanide to acquire resistance.
  • Parasites infecting the insect population carried the trait from insects with a resistance gene to insects without a resistance gene.
  • Predators put greater selection pressure on insects with a resistance gene than on insects without a resistance gene.
  • Insects with a resistance gene survived the first cyanide sprayings and passed the gene to their offspring. (correct)

    • On a hot day, what are dogs' sweating and panting responses primarily attributable to?

  • A loss of oxygen
  • A failure of cell communication
  • A response to a stimulus (correct)
  • A lack of adaptation to the environment

    • Which of these is a key characteristic of natural selection in evolution?

  • Organisms that live longest having the most influence on later generations
  • Humans selecting which species will survive and which will die out
  • The organisms best adapted to their environment being most likely to have offspring (correct)
  • Intelligent organisms planning how to survive and altering themselves accordingly

    • In the context of evolution, what is the most important factor used by scientists to determine if two groups of organisms belong to the same species?

    <p>Can the two groups interbreed to produce fertile offspring</p> Signup and view all the answers

    What is a distinguishing feature of artificial selection in contrast to natural selection in the context of evolution?

    <p>Artificial selection is driven by natural forces, while natural selection involves intentional human intervention</p> Signup and view all the answers

    What is the dependent variable in any experiment?

    <p>It is the experimental data</p> Signup and view all the answers

    In the given experiment, what is the dependent variable?

    <p>Heart rate of the audience members</p> Signup and view all the answers

    What is a possible hypothesis most likely being tested in this experiment?

    <p>Do heart rates increase when watching scary movies</p> Signup and view all the answers

    What should be done if scientific claims were questioned?

    <p>Peer review was used to examine the claims made by scientists</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser