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Worksheetsenvironmental science 3.4/3.5
Total questions: 20
Worksheet time: 24mins
Organisms that have a large effect on the abundance and type of organisms in an ecosystem
nonnative species
invasive species
keystone species
indicator species
The variety of genes, species, ecosystems and ecosystem processes
biodiversity
species evenness
species richness
ecology
Species that are nonnative and harmful to an ecosystem
nonnative species
invasive species
keystone species
indicator species
How does habitat fragmentation reduce genetic diversity in species?
Habitat fragmentation makes nonnative species introduction possible.
Habitat fragmentation opens migration routes.
Habitat fragmentation isolates a large population into smaller groups.
Habitat fragementation encourages open gene flow.
the breaking of habitats into smaller pieces is called...
habitat division
habitat pollution
habitat corruption
habitat fragmentation
What is causing many animals, such as the box turtle's habitat to be fragmented?
houses
streams
powerlines
roads
Besides the risk of vehicular collisions, how else do roads harm wildlife?
by limiting ability to find mates
by limiting ability to find food
by dividing wildlife populations
all of these answers are correct
Habitat fragmentation is caused by ........ factors
natural
anthropic
natural and anthropic
habitat loss is ....... while habitat fragmentation is ........
degradation - breaking apart
destruction - breaking apart
breaking apart - destruction
degradation - subdivision
The effects of habitat loss on biodiversity are ....
always positive
always negative
positive or negative, it depends on
From figure, which habitat has more edge effect?
A
B
A and B equally
From the figure, What habitat should hold a greater amount of biodiversity?
A
B
A and B equally
neither A nor B
The ability of an ecosystem to recover quickly and resist damage after disasters
Ecology
Environmental Science
Biodiversity
Ecosystem Resilience
Mice eat seeds, small fruits and berries, beetles, caterpillars, grasshoppers, leafhoppers, and an underground fungus. What happens if all the grasshoppers die?
The mice die because of a food source being removed
The mice survive due to biodiversity
The beetles and caterpillars increase in population
The beetles and caterpillars decrease in population
Koalas eat eucalyptus. What happens if all the eucalyptus dies?
The koalas die due to lack of food
The koalas adapt to eat other organisms
The eucalyptus finds a way to regrow
