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Life Science Review
Test Description: Life Science Unit Review
Instructions: Answer all questions to get your test result.
1) An organism's habitat provides
A
food and water only
B
shelter and food only
C
food, water, and shelter
D
water only
2) Which of the following is a biotic factor?
A
air
B
soil
C
water
D
deer
3) Which of these is an example of a population
A
ticks and fleas on a dog
B
algae, snails, and fish in an aquarium
C
shells in a seashell collection
D
raccoons in a neighborhood
4) An environmental factor, such as food or space, that causes a population to stop growing or decrease in size
A
ecosystem factor
B
population factor
C
non-limiting factor
D
limiting factor
5) Which of the following is an example of a predator adaptation?
A
poisonous tentacles
B
false coloring
C
mimicry
D
protective covering
6) In parasitism, the organism that the parasite lives in or on is called what?
A
host
B
predator
C
resource
D
consumer
7) A close relationship between two species that benefits at least one of the species is called
A
succession
B
adaptation
C
symbiosis
D
competition
8) Rain forests, grasslands, deserts, and the tundra are all examples of
A
communities
B
organisms
C
populations
D
biomes
9) A prairie dog lives in a grassy habitat. Which of the prairie dog's need do the grasses meet?
A
protection from predators
B
water
C
oxygen
D
food
10) All of the biotic and abiotic factors that interact in a particular are make up a(n)
A
community
B
species
C
population
D
ecosystem
11) Which is an abiotic factor in an ecosystem?
A
bacteria
B
grass
C
soil
D
fungi
12) Which of the following is an example of a community?
A
snails in an aquarium
B
pine cones in a forest
C
cats and dogs in a neighborhood
D
ticks, fleas, mites, and fungi on a dog
13) The largest population an area can support
A
carrying capacity
B
population density
C
immigration rate
D
emigration rate
14) Which of the following might restrict the growth of a population
A
ample rainfall
B
increased predation
C
mild winters
D
increased numbers of prey
15) The struggle between organisms to survive in a habitat with limited resources is called
A
predation
B
commensalism
C
mutualism
D
competition
16) Which is an example of ciommensalism
A
impalas and oxpeckers
B
hummingbirds and flowers
C
remoras and sharks
D
acacia trees and stinging ants
17) The type of symbiotic relationship where both organisms benefit
A
predation
B
mutualism
C
commensalism
D
competition
18) The type of symbiotic relationship where one species benefits and the other is harmed
A
parasitism
B
mutualism
C
competition
D
predator
19) Which characteristic is shared by both parasites and predators?
A
they both capture and kill animals
B
they both attack a living food source
C
they both live inside their host
D
they both feed on decomposing plants
20) Which land biome is extremely cold and dry?
A
tundra
B
rainforest
C
mountains
D
grassland
*select an answer for all questions
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