What causes the rise in prey numbers in a predator-prey relationship?
Populations and Interactions

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Biology
•
7th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A decrease in predators leads to an increase in prey numbers.
2.
FLASHCARD QUESTION
Front
A flea is an example of a _____________ because it does harm to the host it is living on.
Back
parasite
3.
FLASHCARD QUESTION
Front
What is it called when organisms try to obtain the same resources?
Back
Competition
4.
FLASHCARD QUESTION
Front
The average number of individuals of the same species per unit of surface area at a given time is called _____________.
Back
population density
5.
FLASHCARD QUESTION
Front
What may cause exponential growth in a population?
Back
Resources become abundant.
6.
FLASHCARD QUESTION
Front
Define 'population density'.
Back
The number of individuals of the same species per unit area.
7.
FLASHCARD QUESTION
Front
What is 'competition' in ecological terms?
Back
The struggle between organisms to obtain the same resources.
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