WorksheetsAPES: Biodiversity and Conservation 2026
Total questions: 54
Worksheet time: 30mins
What is the number of different habitats available in a given area?
genetic diversity
species diversity
ecosystem diversity
species eveness
What is the difference in the genes of individuals within a population (group of the same species)?
genetic diversity
species diversity
ecosystem diversity
ecosystem resilience
What is the total number of different species found in an ecosystem?
species richness
species evenness
Shannon Weiner index
Ecosystem diversity
What is a measure of how all of the individual organisms in an ecosystem are balanced between the different species?
species richness
species evenness
shannon weiner index
genetic diversity
Which of the following is an index used to calculate richness and evenness to measure biodiversity?
Genetic diversity
Ecosystem diversity
Biodiversity Calculator
Shannon Weiner
What is an environmental disturbance that drastically reduces population size and kills organisms regardless of their genome?
Shannon Index
Bottleneck Event
Inbreeding Depression
Ecosystem Resilience
When organisms mate with closely related family members resulting in a higher chance of offspring having harmful genetic mutations
bottleneck event
inbreeding depression
island biogeography
genetic biodiversity
Which of the following decreases genetic diversity? Select all that apply
Designating areas National Parks
bottleneck events
inbreeding
wildlife corridors
What is the ability of an ecosystem to return to its original conditions after a major disturbance?
bottleneck event
inbreeding
resilience
wildlife corridor
What is the study of ecological relationships and community structure on islands?
Island biogeography
Ecosystem biodiversity
Environmental Indicator
Island structure
Which island has the most biodiversity?
Close and small
Close and large
far and small
far and big
What is the range of conditions such as temperature, salinity, pH, or sunlight that an organism can endure before injury or death results?
island biogeography
zone of intolerance
zone of stress
ecological tolerance
What is the range where organisms survive, but experience some stress such as lack of infertility, lack of growth, decreased activity?
optimal range
zone of intolerance
zone of physiological stress
zone of greatness
What is a natural event that disrupts the structure and or function of an ecosystem?
anthropogenic disruption
urbanization
range of tolerance
natural disruption
What is a natural disturbance that happens in regular frequency - like dry/wet seasons?
periodic
episodic
random
leap year
Which of the following results in an increase in genetic diversity?
Random mutations while DNA is being copied
Crossing over in parent chromosomes
inbreeding
fragmenting habitats
What is a new trait that increases an organism’s fitness (ability to survive and reproduce)?
genetic diversity
ecosystem diversity
adaptation
inbreeding depression
What is it called when organisms that are better adapted to their environment survive and reproduce more offspring?
What is the environmental condition that kills individuals without the adaptation?
Selective pressure
The more rapidly an environment changes, the _______ likely a species in the environment will be to adapt to those changes
less
more
equal in how
no relationship
The ___________ the lifespan of the organism, the slower the rate of evolution.
shorter
longer
no relationship
both short and long lifespan individuals will evolve at a slow pace.
What is a series of predictable stages of growth that a forest goes through - starting with bare rock?
Primary succession
secondary succession
What is a series of predictable stages of growth that a forest goes through - starting with soil?
Primary succession
Secondary succession
What type of species appear first, when the ground is simply bare rock, or bare soil after a disturbance?
What type of species appear last, after soil is deepened and enriched with nutrients by cycles of growth and death by early & mid successional species?
lichen
Large trees
wildflowers
primary consumers
What is a species that gives early warning signs of damage or danger to a community?
Why are amphibians declining (select all that apply)?
habitat loss and fragmentation
extended periods of drought
pollution
UV radiation
What is a species that has a larger impact on the community, if removed, than other species?
Which of the following are common keystone species (select all that apply)?
beaver
kudzu vine
alligator
mangrove tree
What are the characteristics of invasive species (Select all that apply)?
Highly competitive
no predators
thrive in different environments
only eat a limited, specialized diet
Which are most likely to become invasive?
r-select, specialists
r-select, generalists
K-select, specialists
K-select, generalists
Which of the following are invasive species (select all)?
burmese python
manta ray
emerald ash borer
zebra mussel
How do we control invasive species (select all that apply)?
Laws preventing transport
Careful boat cleaning
Introduce a natural predator
physical removal
What are two ways to prevent poaching? (select 2 options)
Hiring of armed guards to monitor populations and prevent poaching
Laws that punish poaching severely, with stiff fines or jail time
What is an international agreement for countries to set up agencies to monitor import and export of endangered species (as specified by IUCN Red List) ?
What is a US law giving USFWS power to designate species as endangered or threatened, monitor trade, and purchase land critical to these species’ habitats?
What is a US act (1900) that prohibits transport of illegally harvested game animals (mostly birds and animals) across state lines - also includes plants?
What is an international treaty (1990) - to help protect biodiversity
3 objectives - conserve biodiversity, sustainably use biodiversity, and equitably share the benefits from commercial use of genetic resources (pharmaceutical drugs)?
What is a 1972 act to protect declining populations of marine mammals - prohibits the killing of all marine mammals in the US and prohibits the import/export of any marine mammal body parts (polar bears, sea otters, manatees, CA sea lions)?
What does the designation "Least Concern" mean for species?
What does the designation "threatened" mean for species?
Which of the following (select all that apply) are contributing to the endangerment of coniferous plants?
over harvesting
disease
expanding insect pest ranges
saltwater intrusion
Which is more likely to become endangered?
specialists
generalists
both are likely
both are not likely
What is a financial transaction in which a portion of a developing nation's foreign debt is forgiven in exchange for local investments in environmental conservation measures?
It is said we are currently in the _____ mass extinction.
Which of the following are true of habitat fragmentation/loss?
Roads & oil/gas pipelines fragment habitats; disrupt movement & lead to fatal collisions with vehicles
Clearing forest/grassland for ag. fields or urbanization fragments those habitats.
removing trees increases biodiversity of species in a forest
disrupts breeding, hunting, migration
What is a group of spatially separated populations of the same species which interact at some level?
Which of the following populations of species are more disrupted by fragmentation than others? (select all that apply)?
Large predators needing very little hunting space
Larger populations of k-selected mammals
Large predators needing large hunting space
Smaller populations of large k-selected mammals may struggle to find mates
What is the location where two ecosystems meet and have different characteristics than the middle of each ecosystem?
Edge habitat
How is climate change disrupting species habitats (select all that apply)?
temperatures shifting biomes toward the poles
precipitation changes
temperatures shifting biomes toward the equator
Coastal areas become flooded and more saline
How has domestication of species for agriculture impacted biodiversity?
Why is the Svalbard Seed Bank important?
What is a wildlife corridor?
Which of the following are ways to mitigate biodiversity loss (select all that apply)?
Build cities up and not out
Protect and connect habitats
Restoring lost habitats
