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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
scientists
B
precipitation and temperature
C
latitude
D
location
2) Which of the following is a biotic factor in a biome?
A
rainfall
B
mosses and algae
C
good soil
D
temperature
3) What change Would be detrimental (bad) to a habitat or biome?
A
enough rainfall
B
a balance of predators and prey
C
a severe drought (lack of water) followed by a forest fire
D
increasing the nutrients in the soil
4) Limiting factors determine an areas carrying capacity (how many animals are there) because......
A
ecosystems are very small
B
the number of animals is unlimited
C
the animals need resources to survive
D
animals are limited
5) The most biologically diverse biome is...
A
temperate deciduous forest
B
swamp
C
tundra
D
tropical rainforest
6) Which of the following statements is true about the savannah?
A
savannahs are rainy year round
B
savannahs have many large herbivores
C
during the wet season, the savannah receives little to no rain
D
savannahs have steep mountain ranges
7) What is another name for a plant?
A
producer
B
consumers
C
predator
D
prey
8) When is food a limiting factor?
A
when there's too much food
B
when the population is small
C
when the population is too large
D
when there's too much water
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
mutualism
B
commensalism
C
competition
D
community
10) After one species disappears, the other species in the ecosystem.....?
A
benefit
B
are affected
C
die
D
are thrown out of balance
11) Rocks, temperature and water are what part of the environment?
A
biotic
B
abiotic
C
living
D
populations
12) The word detrimental means......?
A
mentally unstable
B
bad for the environment
C
good for the environment
D
indifferent to the environment
13) What is something that could threaten (hurt) a biome?
A
drought
B
proper temperatures
C
adequate rainfall
D
normal sunlight
14) The biome that we live in is the...
A
desert
B
taiga
C
temperate deciduous forest
D
tropical rainforest
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 home and cover
B
eliminates or reduces their food sources
C
all of the choices listed
D
sometimes eliminates water sources
17) Which of the following abiotic factors are vital to survival of living organisms?
A
rocks
B
grass
C
rabbits
D
water
18) What biotic factor is important for animals to survive?
A
rocks
B
water
C
grass
D
sunlight
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
everything dies
B
the population increases
C
the population decreases
D
the population increases until it can't be supported and then dies off
20) Why does Australia have a rabbit population problem?
A
not enough people hunted them
B
they have no native predator in Australia
C
they don't like the outback
D
they reproduce really fast
*select an answer for all questions
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