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Benchmark Science Review: 6LS2.1, 6LS2.7, 6LS2.2
By Payton Brewer
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Last updated about 1 year ago
20 questions
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Question 1
1.
Which of the following lives in a prairie
ecosystem?
grass
mushroom
tree
woodpecker
Question 2
2.
Which of the following is a biotic factor?
sunlight
air
water
insect
Question 3
3.
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
Question 4
4.
An organism gets food, water, shelter, and other things it needs to live, grow, and reproduce from its
population
habitat
abiotic factors
species
Question 5
5.
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
Question 6
6.
Three coyotes per square kilometer is an example of population density.
True
False
Question 7
7.
Sunlight can be a limiting factor for populations of plants.
True
False
Question 8
8.
For populations, water and food are examples of...
limiting factors
biotic factors
Question 9
9.
A population can decrease due to its deaths or...
birth rates
population rates
emigration
Question 10
10.
If animals cannot find enough places to build nests, it is because ____________ is a limiting factor for the population.
space
food
water
Question 11
11.
When a snake kills a shrew, the shrew is the
host
prey
predator
parasite
Question 12
12.
A relationship in which two species live closely together and both benefit is
mutualism
predation
parasitism
commensalism
Question 13
13.
The role of an organism in its habitat is its
host
prey
niche
adaptation
Question 14
14.
Adaptations are behaviors and social characteristics that allow organisms to live successfully in their environments.
True
False
Question 15
15.
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
Question 16
16.
An increase in a predator population will likely result in a decrease in the prey population.
True
False
Question 17
17.
Question 18
18.
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
Question 19
19.
A Tasmanian devil growling to protect its food source is called __________ communication.
adaptation
auditory
visual
competitive
Question 20
20.
The main way that populations increase in size is through the ___________ of offspring.
birth
death
immigration
emigration