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Benchmark Science Review: 6LS2.1, 6LS2.7, 6LS2.2
By Payton Brewer
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Last updated over 1 year ago
20 questions
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Question 1
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Question 2
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Question 7
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Question 20
20.
Which of the following lives in a prairie
ecosystem?
grass
mushroom
tree
woodpecker
Which of the following is a biotic factor?
sunlight
air
water
insect
Which of the following lists the levels of an ecosystem in order from largest to smallest?
population, organism, community, ecosystem
ecosystem, community, organism, population
organism, community, population, ecosystem
ecosystem, community, population, organism
An organism gets food, water, shelter, and other things it needs to live, grow, and reproduce from its
population
habitat
abiotic factors
species
The size of a population increases if the number of individuals added to the population is equal to the number of individuals leaving the population.
True
False
Three coyotes per square kilometer is an example of population density.
True
False
Sunlight can be a limiting factor for populations of plants.
True
False
For populations, water and food are examples of...
limiting factors
biotic factors
A population can decrease due to its deaths or...
birth rates
population rates
emigration
If animals cannot find enough places to build nests, it is because ____________ is a limiting factor for the population.
space
food
water
When a snake kills a shrew, the shrew is the
host
prey
predator
parasite
A relationship in which two species live closely together and both benefit is
mutualism
predation
parasitism
commensalism
The role of an organism in its habitat is its
host
prey
niche
adaptation
Adaptations are behaviors and social characteristics that allow organisms to live successfully in their environments.
True
False
A grackle and a sparrow try to eat from the same ear of corn in a field. This is an example of
mutualism
symbiosis
competition
An increase in a predator population will likely result in a decrease in the prey population.
True
False
Oxygen is a(n) ___________in the environment that is important for plants to make their own food.
abiotic factor
ecological factor
biotic factor
competition factor
A Tasmanian devil growling to protect its food source is called __________ communication.
adaptation
auditory
visual
competitive
The main way that populations increase in size is through the ___________ of offspring.
birth
death
immigration
emigration