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WorksheetsEcosystems Review (5.L.2.1, 5.L.2.2, 5.L.2.3)
Total questions: 10
Worksheet time: 5mins
What is a common feature between an estuary and an ocean ecosystem?
Both are freshwater ecosystems.
Both are deep water ecosystems.
Both contain different plants and animals at different depths.
Both contain a deep bottom zone where sunlight does not reach.
A student listed a few characteristics of a desert ecosystem.
Which characteristic did she list incorrectly?
heavy rainfall
nutrient-poor soil
little vegetation
low annual temperatures
Which type of animal usually eats both producers and consumers?
an omnivore
a carnivore
a herbivore
a predator
Which classification best describes herbivores?
producers
consumers
predators
decomposers
A mouse eats seeds and insects. Which best describes the role of the mouse?
decomposer
herbivore
consumer
producer
What will be most affected if the decomposers in an ecosystem are removed?
the spread of disease
the availability of water
the quality of soil
the distribution of organisms
Which would most likely cause a decrease in a population of herbivores?
an increase in the number of producers
a decrease in the types of decomposers
an increase in the types of plants
an increase in the number of carnivores
What would most likely happen if all of the decomposers in an ecosystem were removed?
The animals in the ecosystem would die because of the spread of disease.
The plants in the ecosystem would eventually die because of a lack of nutrients in the soil.
The plants in the ecosystem would begin to die out because of a decrease in available water.
The animals in the ecosystem would eat other types of food because of a decrease in producers.
A food chain in an ecosystem includes blackberry bushes, deer, and wolves.
• Deer eat blackberries.
• Wolves eat deer.
If the population of wolves decreases, how will this affect the population of blackberry bushes?
It will decrease because there will be fewer deer.
It will increase because there will be fewer deer.
It will decrease because there will be more deer.
It will increase because there will be more deer.
The moon jellyfish is a saltwater marine organism.
Which aquatic ecosystem commonly provides the marine habitat the moon jellyfish requires to survive?
river
pond
ocean
lake
