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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
endangered
B
threatened
C
extinct
D
keystone
2) The mating of California condors in zoos is an example of
A
biodiversity
B
captive breeding
C
habitat preservation
D
habitat destruction
3) The number of different species in an area is referred to as its
A
habitat fragmentation
B
niche diversity
C
biodiversity
D
climate
4) A species that influences the survival of many other species in an ecosystem is called
A
exotic species
B
keystone species
C
native 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
organisms
B
genes
C
offspring
D
species
6) Setting aside a marsh as a wildlife refuge is an example of the ____ approach to protecting biodiversity.
A
habitat fragmentation
B
captive breeding
C
natural resource management
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
structural adaptation
B
economic adaptation
C
species adaptation
D
behavioral adaptation
8) The series of changes that occur in an area where no ecosystem previously existed is called _______
A
secondary succession
B
primary succession
C
economic succession
D
scientific succession
9) A biotic resource is
A
owl
B
minerals
C
water
D
oxygen
10) An abiotic resource is
A
tree
B
sunlight
C
buffalo
D
squirrel
*select an answer for all questions
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