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6.LS.4 Biotic/abiotic Components That Are Beneficial/detrimental
Test Description: 6th grade life science standard 4
Instructions: Answer all questions to get your test result.
1) Biomes are determined by.....
A
precipitation and temperature
B
scientists
C
location
D
latitude
2) Which of the following is a biotic factor in a biome?
A
good soil
B
mosses and algae
C
temperature
D
rainfall
3) What change Would be detrimental (bad) to a habitat or biome?
A
increasing the nutrients in the soil
B
a severe drought (lack of water) followed by a forest fire
C
enough rainfall
D
a balance of predators and prey
4) Limiting factors determine an areas carrying capacity (how many animals are there) because......
A
the number of animals is unlimited
B
ecosystems are very small
C
animals are limited
D
the animals need resources to survive
5) The most biologically diverse biome is...
A
swamp
B
temperate deciduous forest
C
tropical rainforest
D
tundra
6) Which of the following statements is true about the savannah?
A
savannahs have many large herbivores
B
during the wet season, the savannah receives little to no rain
C
savannahs have steep mountain ranges
D
savannahs are rainy year round
7) What is another name for a plant?
A
producer
B
consumers
C
prey
D
predator
8) When is food a limiting factor?
A
when the population is too large
B
when the population is small
C
when there's too much water
D
when there's too much food
9) Two members of the same species fight over who gets a certain food. Members of different species trying to take over a nesting area. These are examples of....?
A
commensalism
B
community
C
competition
D
mutualism
10) After one species disappears, the other species in the ecosystem.....?
A
die
B
benefit
C
are affected
D
are thrown out of balance
11) Rocks, temperature and water are what part of the environment?
A
living
B
abiotic
C
populations
D
biotic
12) The word detrimental means......?
A
bad for the environment
B
good for the environment
C
indifferent to the environment
D
mentally unstable
13) What is something that could threaten (hurt) a biome?
A
adequate rainfall
B
drought
C
normal sunlight
D
proper temperatures
14) The biome that we live in is the...
A
taiga
B
desert
C
tropical rainforest
D
temperate deciduous forest
15) What biome has enough rain to keep it from becoming a desert but not enough to grow big trees?
A
grassland
B
taiga
C
temperate deciduous forest
D
rainforest
16) What does habitat destruction do to native animals?
A
eliminates or reduces their food sources
B
sometimes eliminates water sources
C
eliminates home and cover
D
all of the choices listed
17) Which of the following abiotic factors are vital to survival of living organisms?
A
grass
B
rabbits
C
rocks
D
water
18) What biotic factor is important for animals to survive?
A
water
B
sunlight
C
grass
D
rocks
19) What happens to a population, such as deer, that is in a place where there is not a natural predator? Think about St Matthew's island.
A
the population increases
B
the population increases until it can't be supported and then dies off
C
everything dies
D
the population decreases
20) Why does Australia have a rabbit population problem?
A
they have no native predator in Australia
B
they don't like the outback
C
they reproduce really fast
D
not enough people hunted them
*select an answer for all questions
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