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WorksheetsUnit 2 Biodiversity
Total questions: 22
Worksheet time: 22mins
An island off the coast of Africa contains a larger percentage of specialist species than generalist species. Which of the following describes the most immediate effect if an invasive generalist species is introduced to the island?
As predation increases, the population size of the invasive generalist species will decrease.
As competition for resources increases, the population size of the island’s specialist species will decrease.
As resources are partitioned, the population sizes of both the generalist species and the specialist species will increase.
As niches overlap, the invasive generalist species will be outcompeted by the island’s specialist species.
Biodiversity is measured using two criteria. They are...
Species evenness and habitat area
Species richness and ecological relationships
Species richness and evenness
Species evenness and NPP produced
Which of the following would have the highest species richness?
An ecosystem with 30 species with varying numbers of each population.
An ecosystem with 15 species with 2 populations dominating in size.
An ecosystem with 25 species with roughly the same amount of individuals in each population.
An ecosystem with 5 highly specialized species with equal amount of individuals in each population.
According to the map, which of the following islands would be negatively impacted the most by an invasive species?
1
2
3
4
The first species that reappear after a major disruption to an ecosystem are known as...
Primary consumers
Reintroduced species
Endangered Species
Pioneer species
Primary succession would occur in all the following areas except..
bare rock
after a volcanic eruption
sandy dunes
an open field
What area would be considered the climax community?
Annual herb stage
forest
scrub stage
lichen moss stage
Which of the following pairs would be considered a regulating service of biodiversity?
Food and fresh water
Pollination and biological control
Tourism and the arts
Habitats and genetic diversity
Which of the following would be an anthropogenic effect on the cultural services of biodiversity?
Switching to a vegan diet
The dumping of toxic chemicals in our fresh water ways
Increased snorkeling in the Great Barrier Reef
Removal of a forest to build new town homes
Invasive species are successful because
they enter an ecosystem much like the one they come from.
they are the first organisms to appear after a disturbance
they have no predators and reduced competition
they require less energy and can fit in lower trophic levels.
The result of a bottleneck event is...
reduced genetic diversity
increased genetic diversity
speciation
increased gene flow
Which of the following might be a pioneer species after a fire has destroyed a forest?
native grasses
primary consumers
secondary consumers
larger trees
Which one of the following factors is not a major cause of loss of biodiversity?
habitat fragmentation
Agriculture
Invasive species
Pollution
What is one way we can reduce human impact on the release of invasive species?
Increase travel
Increase shipping and purchase of goods from other countries
build more residential and commercial areas
return unwanted pets to proper locations and organizations
Which of these is an aquatic indicator species?
Shrimp
Coral
Plankton
Sea Anemone
This community has
low species richness
high species evenness
an unequal distribution of species
no biodiversity
Which law regulates the trade in endangered species between countries?
CITES
Kyoto Protocol
Montreal Protocol
Endangered Species Act
The abiotic conditions under which a species can survive and reproduce is called its
range of tolerance
realized niche
environmental distribution
fundamental niche
The best way to preserve biodiversity is to...
stop using all plastics
protect and maintain habitats
reduce our impact on pollution
lower our need for poultry and beef
What is the difference between primary and secondary succcession?
Primary succession already has soil
Lichen and moss come in for secondary succession
Secondary succession already has soil
Climax community is achieved quickly in primary succession
the breaking of habitats into smaller pieces is called...
habitat division
habitat pollution
habitat corruption
habitat fragmentation
