GRCC BI 118 Exam 3 Questions and Answers Fully Solved Latest Update 2025-2026
Biodiversity - Answers _______________ is the variety of life on earth
Genetic Diversity - Answers _____________ is the variety of different versions of the same genes within
a species
Species Diversity - Answers _____________ is the number of different kinds of organisms within an
ecosystem
Ecological Diversity - Answers _____________ is the complexity of a biological community (number of
niches, trophic levels, etc.)
1.74 Million - Answers How many species are there currently on the planet?
Biodiversity Hotspots - Answers ___________ are areas high in endemic species
Endemic Species - Answers ___________ are species found in only one area. These species are
especially vulnerable to extinction.
Penicillin - Answers This important and useful drug was discovered in 1928, and was the first substance
found that could stop bacterial infections. It is made from fungus, and is still a very effective antibiotic
Species - Answers A _____________ is all the organisms genetically similar enough to breed and
produce live, fertile offspring in nature.
Have a right to live, Provide important economic services, Contribute to economic services, It will take 5
to 10 million years to replace lost species - Answers Why should we protect species?
5 to 100 million - Answers How many species are still yet to be discovered according to scientists?
Bugs and Bacteria - Answers What are most of the species that we know of?
Taxonomy - Answers _____________ is the naming and classification of species
Binomial - Answers ______________ is the 2-part Latin name (scientific name) of a species
Genus and Species - Answers What does the Binomial consist of?
Genus - Answers _____________ is a group of different species
Species - Answers 1 species within Genus
Kingdom
Phylum
Class
, Order
Family
Genus
Species - Answers What is the the order for classification of life's diversity?
It only holds 1.3% of earths land but holds a large percentage of different species - Answers Why is
Indonesia an example of Mega-Diversity?
High ecological diversity, Tropical rainforest, High primary productivity - Answers What characteristics
does Indonesia have that allows for Mega-Diversity?
Lots of energy/warmth and water, Stable climate, Large area, Ecological diversity, No catastrophic
disturbance, A lot of intermediate disturbance - Answers Why do so many species live in Tropical
Rainforests?
Endangered Species Act of 1973 - Answers ____________ is a law requiring the federal government to
protect all species listed as endangered
States that losing one species may not be a big deal. But losing multiple species can cause the collapse of
an entire ecosystem - Answers What is the rivet or brick model?
If 90% of habitat is destroyed in an area, you will lose 50% of your species there - Answers What is the
90-50 relationship in regards to extinction?
HIPPOC - Answers What is the Acronym for the major causes of anthropogenic extinction?
Habitat loss & fragmentation, Introduction of exotic species, Pollution (global warming), Population of
humans, Overexploitation of species (poaching), Climate Change - Answers What are the major causes
of anthropogenic extinction?
Ecological, Evolutionary, Utilitarian, Economic, Aesthetic, Ethical, Physiological - Answers What are the 7
Reasons to save biodiversity?
Provides food, fuel, and fiber, Shelter and building materials, Purify air and water, Detoxifies and
decomposes waste, Maintains earths climate, and Moderates floods, droughts, winds, temp - Answers
What does the Ecological reason to save biodiversity state?
Genetic diversity needed for change - Answers What does the Evolutionary reason to save biodiversity
state?
All food & 1 out of 3 medical drugs come from nature - Answers What does the Utilitarian reason to save
biodiversity state?
Biodiversity - Answers _______________ is the variety of life on earth
Genetic Diversity - Answers _____________ is the variety of different versions of the same genes within
a species
Species Diversity - Answers _____________ is the number of different kinds of organisms within an
ecosystem
Ecological Diversity - Answers _____________ is the complexity of a biological community (number of
niches, trophic levels, etc.)
1.74 Million - Answers How many species are there currently on the planet?
Biodiversity Hotspots - Answers ___________ are areas high in endemic species
Endemic Species - Answers ___________ are species found in only one area. These species are
especially vulnerable to extinction.
Penicillin - Answers This important and useful drug was discovered in 1928, and was the first substance
found that could stop bacterial infections. It is made from fungus, and is still a very effective antibiotic
Species - Answers A _____________ is all the organisms genetically similar enough to breed and
produce live, fertile offspring in nature.
Have a right to live, Provide important economic services, Contribute to economic services, It will take 5
to 10 million years to replace lost species - Answers Why should we protect species?
5 to 100 million - Answers How many species are still yet to be discovered according to scientists?
Bugs and Bacteria - Answers What are most of the species that we know of?
Taxonomy - Answers _____________ is the naming and classification of species
Binomial - Answers ______________ is the 2-part Latin name (scientific name) of a species
Genus and Species - Answers What does the Binomial consist of?
Genus - Answers _____________ is a group of different species
Species - Answers 1 species within Genus
Kingdom
Phylum
Class
, Order
Family
Genus
Species - Answers What is the the order for classification of life's diversity?
It only holds 1.3% of earths land but holds a large percentage of different species - Answers Why is
Indonesia an example of Mega-Diversity?
High ecological diversity, Tropical rainforest, High primary productivity - Answers What characteristics
does Indonesia have that allows for Mega-Diversity?
Lots of energy/warmth and water, Stable climate, Large area, Ecological diversity, No catastrophic
disturbance, A lot of intermediate disturbance - Answers Why do so many species live in Tropical
Rainforests?
Endangered Species Act of 1973 - Answers ____________ is a law requiring the federal government to
protect all species listed as endangered
States that losing one species may not be a big deal. But losing multiple species can cause the collapse of
an entire ecosystem - Answers What is the rivet or brick model?
If 90% of habitat is destroyed in an area, you will lose 50% of your species there - Answers What is the
90-50 relationship in regards to extinction?
HIPPOC - Answers What is the Acronym for the major causes of anthropogenic extinction?
Habitat loss & fragmentation, Introduction of exotic species, Pollution (global warming), Population of
humans, Overexploitation of species (poaching), Climate Change - Answers What are the major causes
of anthropogenic extinction?
Ecological, Evolutionary, Utilitarian, Economic, Aesthetic, Ethical, Physiological - Answers What are the 7
Reasons to save biodiversity?
Provides food, fuel, and fiber, Shelter and building materials, Purify air and water, Detoxifies and
decomposes waste, Maintains earths climate, and Moderates floods, droughts, winds, temp - Answers
What does the Ecological reason to save biodiversity state?
Genetic diversity needed for change - Answers What does the Evolutionary reason to save biodiversity
state?
All food & 1 out of 3 medical drugs come from nature - Answers What does the Utilitarian reason to save
biodiversity state?
