Podcast
Questions and Answers
What characteristic of the polar bear's fur helps trap heat against the bear's skin?
What characteristic of the polar bear's fur helps trap heat against the bear's skin?
- The thickness of the fur (correct)
- The color of the fur
- The thinness of the fur
- The smoothness of the fur
In the context of evolutionary changes, what is natural selection?
In the context of evolutionary changes, what is natural selection?
- A process that ensures all species become extinct
- A process that prevents favorable traits from being passed on
- A process that facilitates changes in individual characteristics (correct)
- A process that prevents changes in a species
What key factor contributes to the polar bear's ability to adapt more easily to the arctic environment than the brown bear?
What key factor contributes to the polar bear's ability to adapt more easily to the arctic environment than the brown bear?
- No fur on its paws for better grip on ice
- Short fur that helps regulate body temperature
- Thick fur that traps heat and protects from cold (correct)
- Long fur that helps camouflage in the snow
According to Darwin, which type of species is most likely to survive over time?
According to Darwin, which type of species is most likely to survive over time?
What part of the polar bear's body has fur to provide protection from cold snow and ice?
What part of the polar bear's body has fur to provide protection from cold snow and ice?
What is the main purpose of adaptation within a species?
What is the main purpose of adaptation within a species?
In terms of evolution, what ensures favorable traits become more dominant within a population?
In terms of evolution, what ensures favorable traits become more dominant within a population?
What does adaptation refer to in the context of an organism?
What does adaptation refer to in the context of an organism?
What is the main function of fur on a polar bear's paws?
What is the main function of fur on a polar bear's paws?
How do evolutionary changes help organisms within a species?
How do evolutionary changes help organisms within a species?
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