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WorksheetsLife Science Qtr 3 Review
Total questions: 12
Worksheet time: 6mins
Which of the following describes a biotic factor in an ecosystem?
Sunlight
Temperature
A population of deer
Soil Type
Which of these is an example of an abiotic factor affecting an ecosystem?
The amount of rainfall
The presence of decomposers
The diversity of plant life
The number of predators
What is the definition of an ecosystem?
a group of the same type of organism
all of the living things in an area
all of the living and non-living things interacting in an area
a group of different populations
Which of the following is an example of how organisms respond to seasonal change?
Hibernation
Photosynthesis
Cellular respiration
Decomposition
What is the purpose of classifying organisms?
To make organisms look more organized
To identify relationships between organisms
To have fun
To make organisms grow larger
The scientific name of an organism consists of its (binomial nomenclature):
Family and genus
Kingdom and phylum
Genus and species
Class and order
Which of the following is the most specific level of classification?
Kingdom
Phylum
Genus
Species
How might the introduction of a new predator species impact the prey population within an ecosystem?
The prey population will likely increase.
The prey population will experience no change.
The predator will die off rapidly.
The prey population will likely decrease.
In a food web, what do the arrows represent?
The direction of energy flow.
The movement of water.
The size of the population.
The physical location of organisms.
Archaebacteria and Eubacteria are prokaryotes
True
False
What role do decomposers play in an ecosystem?
They provide shelter for other organisms.
They compete with predators for food.
They break down dead organisms and recycle nutrients.
They produce energy from sunlight.
What is the primary source of energy for most ecosystems?
Water
Sunlight
Wind
Soil
