Podcast
Questions and Answers
What percentage of Earth's surface is comprised of freshwater ecosystems?
What percentage of Earth's surface is comprised of freshwater ecosystems?
- 40%
- 70%
- 1.8% (correct)
- 30%
What is the primary driver of natural selection in ecosystems?
What is the primary driver of natural selection in ecosystems?
- Habitat alteration
- Annual rainfall variation
- Temperature variation
- Limited resources (correct)
Which type of ecosystem is characterized by a high level of biodiversity despite its relatively small area?
Which type of ecosystem is characterized by a high level of biodiversity despite its relatively small area?
- Terrestrial ecosystems
- Freshwater ecosystems
- Biodiversity hotspots (correct)
- Marine ecosystems
What is the term for the steady state of an ecosystem where all organisms are in balance?
What is the term for the steady state of an ecosystem where all organisms are in balance?
What is the purpose of conceptual models in ecology?
What is the purpose of conceptual models in ecology?
What is the term for the community of living organisms and their interactions with the abiotic environment?
What is the term for the community of living organisms and their interactions with the abiotic environment?
What is the primary function of aerial roots in epiphytes?
What is the primary function of aerial roots in epiphytes?
Which type of plant has no chlorophyll and obtains photosynthate by parasitizing fungi?
Which type of plant has no chlorophyll and obtains photosynthate by parasitizing fungi?
What is the term for the interaction between two or more species, including mycorrhizae and lichens?
What is the term for the interaction between two or more species, including mycorrhizae and lichens?
What is the primary function of clingling aerial roots in epiphytes?
What is the primary function of clingling aerial roots in epiphytes?
What is the term for the scientific study of interactions between organisms and their environment?
What is the term for the scientific study of interactions between organisms and their environment?
What is the primary function of the 3 hairs in the center of each leaf half of the Venus flytrap?
What is the primary function of the 3 hairs in the center of each leaf half of the Venus flytrap?
What is the primary function of the rhizosphere?
What is the primary function of the rhizosphere?
Which of the following is a characteristic of mineral soil?
Which of the following is a characteristic of mineral soil?
What is the primary advantage of hydroponics over traditional soil-based agriculture?
What is the primary advantage of hydroponics over traditional soil-based agriculture?
What is the primary component of humus in soil?
What is the primary component of humus in soil?
Which of the following is NOT a factor influencing soil formation?
Which of the following is NOT a factor influencing soil formation?
What is the primary role of mycorrhizal fungi in plant nutrition?
What is the primary role of mycorrhizal fungi in plant nutrition?
What is the primary difference between ectomycorrhizal and endomycorrhizal fungi?
What is the primary difference between ectomycorrhizal and endomycorrhizal fungi?
Which of the following nutrients is often limiting in soil for plant growth?
Which of the following nutrients is often limiting in soil for plant growth?
What is the primary role of nodules in legume roots?
What is the primary role of nodules in legume roots?
Which of the following is NOT a characteristic of clay soil particles?
Which of the following is NOT a characteristic of clay soil particles?
