DCA 3 Ecosystems Class Review

Flashcard
•
Biology
•
9th - 12th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is competition in ecosystems?
Back
A relationship that occurs when two or more organisms of the same species need the same resource at the same time.
2.
FLASHCARD QUESTION
Front
What is a limiting factor?
Back
A condition that restricts the growth, abundance, or distribution of an organism or a population of organisms.
3.
FLASHCARD QUESTION
Front
Which of the following is NOT a limiting factor: Climate, Available Food & Water, Available Space & Shelter, Species color?
Back
Species color is NOT a limiting factor.
4.
FLASHCARD QUESTION
Front
What happens to predator and prey populations over time?
Back
Predator population lags behind prey population because an increase in predators leads to a decrease in prey.
5.
FLASHCARD QUESTION
Front
What are decomposers?
Back
Organisms, like bacteria, insects, and worms, that break down waste and recycle nutrients back into the ecosystem.
6.
FLASHCARD QUESTION
Front
What effect does an increase in the wolf population have on the deer population?
Back
An increase in the wolf population can lead to a decrease in the deer population.
7.
FLASHCARD QUESTION
Front
Define symbiosis.
Back
A close and long-term interaction between two different species, which can be beneficial, neutral, or harmful.
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