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Balance Within Ecosystems
Test Description: Prepare for chapter 5 test
Instructions: Answer all questions to get your test result.
1) If all members of a species disappear from Earth, the species is said to be
A
keystone
B
endangered
C
extinct
D
threatened
2) The mating of California condors in zoos is an example of
A
habitat preservation
B
habitat destruction
C
biodiversity
D
captive breeding
3) The number of different species in an area is referred to as its
A
biodiversity
B
habitat fragmentation
C
niche diversity
D
climate
4) A species that influences the survival of many other species in an ecosystem is called
A
exotic species
B
native species
C
keystone species
D
nonnative species
5) A diverse pool of ____ helps ensure that individuals in a species will pass a variety of traits to their offspring
A
offspring
B
organisms
C
genes
D
species
6) Setting aside a marsh as a wildlife refuge is an example of the ____ approach to protecting biodiversity.
A
natural resource management
B
habitat fragmentation
C
captive breeding
D
habitat destruction
7) An insect looks like a leaf, so it blends in with its surroundings and is hard for predators to see. The insect's characteristic is an example of a
A
species adaptation
B
structural adaptation
C
economic adaptation
D
behavioral adaptation
8) The series of changes that occur in an area where no ecosystem previously existed is called _______
A
primary succession
B
secondary succession
C
scientific succession
D
economic succession
9) A biotic resource is
A
water
B
owl
C
oxygen
D
minerals
10) An abiotic resource is
A
sunlight
B
buffalo
C
tree
D
squirrel
*select an answer for all questions
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