MCU2 Quiz

Quiz
•
Science
•
7th Grade
•
Medium
Arleigh Wilke
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of these is an example of a biotic factor that could affect the size of a population?
Climate
Disease
A natural disaster
Water availability
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an example of an abiotic factor in an aquatic system?
Water lilies float on top of pond.
A population of bass is living in a lake.
The pH of a lake is decreased by acid rain.
Dragonflies feed on small insects near a pond.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The picture shows a food web in the forest. Which of these is represented by the diagram?
Abiotic factors
Community
Ecosystem
Population
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these is an example of a population in a desert ecosystem?
A saguaro cactus
the amount of rainfall
a fennec fox and its young
hawks and the lizards they feed on
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these events would lead to an increase in the size of a population of squirrels?
More squirrels are born than die.
Some squirrels emigrate in search of food.
New predators are added to the ecosystem.
A large number of schools die because of a forest fire.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these is the most likely reason that a population in an ecosystem could have sharp decline?
The number of prey suddenly increases.
The number of predators suddenly decreases.
The competition for the same resource suddenly drops.
The abiotic resources in the environment suddenly drops.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This graph shows the population of a group of rabbits in a restricted area studied over a period of 5 years. Which statement might explain why the population leveled off on the graph?
The resources in the area ran out.
The rabbits encountered a new disease.
Predators were introduced into the area.
Competition for resources limited the rabbit population.
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