
Populations and Communities Unit review
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What are density-independent factors?
Back
Factors that affect population size regardless of the population's density, such as natural disasters, climate changes, and human activities.
Tags
NGSS.HS-LS4-5
2.
FLASHCARD QUESTION
Front
What is an example of a density-dependent factor?
Back
Less space, as it affects population growth when the population density is high.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
3.
FLASHCARD QUESTION
Front
What does a population pyramid represent?
Back
A graphical representation of the age structure of a population, showing the distribution of various age groups.
4.
FLASHCARD QUESTION
Front
What does rapid growth in a population pyramid indicate?
Back
A high number of young individuals, suggesting a growing population.
5.
FLASHCARD QUESTION
Front
What is population density?
Back
The number of individuals living in a given area, typically expressed as individuals per unit area.
6.
FLASHCARD QUESTION
Front
What happens to prey populations when predator populations increase?
Back
Prey populations typically decrease due to increased predation.
Tags
NGSS.MS-LS2-4
7.
FLASHCARD QUESTION
Front
What age group is represented at the bottom of a population pyramid?
Back
The children, indicating the younger population.
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