WorksheetsInterspecific Competition
Total questions: 15
Worksheet time: 8mins
Which factor promotes competition between organisms in an ecosystem?
cycling of minerals
limited resources
decomposition of organic matter
presence of saprophytes
Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while Species B feeds on caterpillars. The two species coexist successfully because
each occupies a different niche
they interbreed
they use different methods of reproduction
birds compete for food
Predator population lags behind prey population because:
Increase in predators leads to decrease in prey
Increase in predators leads to increase in prey
Increase in predators leads to decrease in producers
In ecosystems, organisms rely on each other. This is called
Interdependence
relationships
predation
habitat
the act of one animal seeking out, killing and consuming another animal
Predation
Herbivory
Symbiosis
cooperation
Predator prey relationships are important for
Population control
intraspecific competition
Symbiosis
community diversity
When an animal consumes plant matter the relationship is
Herbivory
Predation
Prey
Hunting
When predators are removed from an ecosystem it can cause
a trophic cascade
a boom in the plant population
a decrease in the herbivore population
rivers to over flow their banks
The reintroduction of wolves in Yellowstone National Park
Made the ecosystem more stable
Made the ecosystem less stable
Eliminated moose from the park
Caused an increase in the deer population
Wolves in Yellowstone had an impact on
Biotic features of the ecosystem
Abiotic features of the ecosystem
The weather
The climate
