Population Ecology
Flashcard
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is population ecology?
Back
Population ecology is the study of how populations of organisms interact with their environment and how factors such as resource availability, competition, and predation affect population dynamics.
2.
FLASHCARD QUESTION
Front
What is a limiting factor in ecology?
Back
A limiting factor is a resource or condition that limits the growth, abundance, or distribution of a population within an ecosystem.
3.
FLASHCARD QUESTION
Front
What is the difference between density-dependent and density-independent factors?
Back
Density-dependent factors are influenced by the population size (e.g., competition, predation), while density-independent factors affect populations regardless of their size (e.g., natural disasters, climate).
4.
FLASHCARD QUESTION
Front
What is carrying capacity?
Back
Carrying capacity is the maximum number of individuals of a particular species that an environment can sustainably support.
5.
FLASHCARD QUESTION
Front
What is a trophic level?
Back
A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients from one level to the next.
6.
FLASHCARD QUESTION
Front
What is the 10% rule in ecology?
Back
The 10% rule states that only about 10% of the energy from one trophic level is transferred to the next level, with the rest lost as heat.
7.
FLASHCARD QUESTION
Front
What is a keystone species?
Back
A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance, often maintaining the structure of the ecosystem.
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