BIO 101 EXAM 5 ACTUAL PAPER 2026
COMPLETE QUESTIONS AND SOLUTIONS
CERTIFICATION READY
◉ The core problem behind much of the environmental degradation
we cause is that our population is _____________.
-ten thousand years ago, the human population was 5 million.
-by the time of christ, human population had increased to 130
million.
-in 2008, the world's population reached 6.7 billion people.
Answer: too large and growing too rapidly
◉ The human population is growing by about ____ million people per
year.
-Over the last 300 years, the average birth rate for humans has
stabilized at about 21 births per thousand people per year.
-However, with better sanitation and medical treatment, the death
rate has declined to about 9 people per thousand per year.
Such growth cannot continue.
-How all these people will be fed and be able to lead a rewarding,
meaningful life remains to be determined.
Answer: 80
,◉ ___________:
-Pristine restoration is not usually possible because we rarely know
the identity of all of the original inhabitants and the ecologies of
each species.
-Removing introduced species can restore a habitat.
-Cleanup and rehabilitation, such as pollution removal, can
successfully restore habitat.
Answer: habitat restoration
◉ __________:
peregrine falcon.
-DDt use affected the egg shells of falcons causing them to break
prematurely.
-DDt was banned in 1972, and falcons from other locations re-
established populations that had disappeared.
Answer: captive propagation
◉ ______________:
black rhino.
-Mitochondrial DNA analysis suggests that populations are
genetically very similar.
-This lack of genetic variability poses the greatest challenge to the
species.
, -Placing black rhinos from different locations together might
increase genetic diversity, and it might also be problematic.
Answer: sustaining genetic diversity
◉ ______________:
flying foxes.
-"flying foxes" are bats which exclusively pollinate and disperse
seeds of some plant species.
-Many plant species are declining due to hunting of these bats by
humans.
-some populations have been helped by legal protection, habitat
restoration, and captive breeding programs.
Answer: preserving keystone species
◉ ___________: conservation biologists often focus on preserving intact
ecosystems, rather than focusing on particular species.
Answer: conservation of ecosystems
◉ Genetically programmed behaviors are considered _______
behaviors.
These behaviors are determined by preset paths in the ________
system.
The motor programs for these types of behavior, such as the egg-
rolling behavior of geese, are called ____________.
COMPLETE QUESTIONS AND SOLUTIONS
CERTIFICATION READY
◉ The core problem behind much of the environmental degradation
we cause is that our population is _____________.
-ten thousand years ago, the human population was 5 million.
-by the time of christ, human population had increased to 130
million.
-in 2008, the world's population reached 6.7 billion people.
Answer: too large and growing too rapidly
◉ The human population is growing by about ____ million people per
year.
-Over the last 300 years, the average birth rate for humans has
stabilized at about 21 births per thousand people per year.
-However, with better sanitation and medical treatment, the death
rate has declined to about 9 people per thousand per year.
Such growth cannot continue.
-How all these people will be fed and be able to lead a rewarding,
meaningful life remains to be determined.
Answer: 80
,◉ ___________:
-Pristine restoration is not usually possible because we rarely know
the identity of all of the original inhabitants and the ecologies of
each species.
-Removing introduced species can restore a habitat.
-Cleanup and rehabilitation, such as pollution removal, can
successfully restore habitat.
Answer: habitat restoration
◉ __________:
peregrine falcon.
-DDt use affected the egg shells of falcons causing them to break
prematurely.
-DDt was banned in 1972, and falcons from other locations re-
established populations that had disappeared.
Answer: captive propagation
◉ ______________:
black rhino.
-Mitochondrial DNA analysis suggests that populations are
genetically very similar.
-This lack of genetic variability poses the greatest challenge to the
species.
, -Placing black rhinos from different locations together might
increase genetic diversity, and it might also be problematic.
Answer: sustaining genetic diversity
◉ ______________:
flying foxes.
-"flying foxes" are bats which exclusively pollinate and disperse
seeds of some plant species.
-Many plant species are declining due to hunting of these bats by
humans.
-some populations have been helped by legal protection, habitat
restoration, and captive breeding programs.
Answer: preserving keystone species
◉ ___________: conservation biologists often focus on preserving intact
ecosystems, rather than focusing on particular species.
Answer: conservation of ecosystems
◉ Genetically programmed behaviors are considered _______
behaviors.
These behaviors are determined by preset paths in the ________
system.
The motor programs for these types of behavior, such as the egg-
rolling behavior of geese, are called ____________.
