Podcast
Questions and Answers
Which of the following best explains how resistance to cyanide spread in the scale insect population?
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?
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?
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?
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?
What is a distinguishing feature of artificial selection in contrast to natural selection in the context of evolution?
What is a distinguishing feature of artificial selection in contrast to natural selection in the context of evolution?
What is the dependent variable in any experiment?
What is the dependent variable in any experiment?
In the given experiment, what is the dependent variable?
In the given experiment, what is the dependent variable?
What is a possible hypothesis most likely being tested in this experiment?
What is a possible hypothesis most likely being tested in this experiment?
What should be done if scientific claims were questioned?
What should be done if scientific claims were questioned?
