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