Podcast
Questions and Answers
Which of the following is a characteristic of a keystone species?
Which of the following is a characteristic of a keystone species?
- It is a species that is only found in a specific habitat.
- It is a species that has a very long lifespan.
- It is a species that is typically at the top of the food chain.
- It is a species that has a large impact on the ecosystem, even if it is not abundant. (correct)
What is an example of a renewable resource?
What is an example of a renewable resource?
- Oil
- Coal
- Natural gas
- Solar energy (correct)
Which of the following is NOT an example of an ecological adaptation?
Which of the following is NOT an example of an ecological adaptation?
- The camouflage of a chameleon
- The ability of a human to learn a new language (correct)
- The ability of a bird to sing a complex song
- The thick fur of polar bears
What is the relationship between biodiversity and climate?
What is the relationship between biodiversity and climate?
Which of the following is an example of mutualism?
Which of the following is an example of mutualism?
Flashcards
Symbiosis
Symbiosis
The relationship between organisms of different species.
Mutualism
Mutualism
A symbiotic relationship where both species benefit.
Endangered species
Endangered species
A species in danger of becoming extinct soon.
Natural resources
Natural resources
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Natural selection
Natural selection
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Study Notes
Symbiotic Relationships
- Symbiosis describes relationships between organisms of different species.
- Types include:
- Mutualism: Both species benefit (e.g., oxpecker and zebra).
- Commensalism: One species benefits, the other is unaffected.
- Parasitism: One species benefits, the other is harmed.
Environmental Science
- Environmental science studies natural processes and human impact.
- Biodiversity refers to the variety of species in an environment.
- Climate influences species distribution (e.g., species richness increases towards the equator).
- Niche diversity describes areas with a single species.
- Niche: An organism's role and adaptations in its habitat.
- Keystone species significantly influence ecosystem dynamics.
- Extinction: Complete disappearance of a species.
- Endangered species face extinction.
- Threatened species are at risk of endangerment.
Natural Resources
- Natural resources are environmental materials used by people.
- Renewable resources are replenished relatively quickly.
- Non-renewable resources are not replaced within a human lifetime (e.g., oil, coal).
Adaptations and Evolution
- Adaptations: Features and behaviors enabling species survival in their environment.
- Ecological adaptations: Body features, actions, abilities helping organisms in their environment.
- Natural selection: Traits enhancing an organism's survival in its environment.
- Competition: Struggle for resources (food, water).
- Predation: One animal hunting and consuming another.
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