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