
Food Webs and Changes in Populations Quiz 24-25
Quiz
•
Biology
•
7th Grade
•
Medium
Standards-aligned
Cari Thompson
Used 5+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A farmer had an accident and spilled a chemical into his pond. Several days later, he noticed many dead frogs around the pond. That summer, the number of flies around the pond was higher than ever. This is because
the chemical doesn’t affect the populations of the pond
the frogs are limiting factors for the flies
the flies are a limiting factor for the frogs
the chemical is a limiting factor for the flies
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A scientist was studying a population of fish in a pond over a period of 10 years. He observed that the population increased each year for 3 years and then leveled off and stabilized for the rest of the study. The best explanation for this observation is that the population had
No predators
Limiting factors
Abundant resources
Natural hazards
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
These restrict populations from growing exponentially larger in ecosystems.
carrying capacity
limiting factor
population density
niche
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The maximum number of organisms that an ecosystem can support is known as ________.
changes in population
population density
energy pyramid
carrying capacity
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens to the population of an ecosystem if no limiting factors exist?
population remains the same
population decreases
population increases
population fluctuates
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the graph below where was the population growing the most?
days 1-7
days 9-17
days 21-27
days 29-35
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the carrying capacity in the graph to the right?
500
1000
400
800
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