Ecological Interactions & Cycles

What is the definition of competition in biology?

• The process by which organisms produce offspring

• The interaction where two or more organisms or species attempt to use the same limited resources

• The relationship between predators and their prey

• The mutual benefit relationship between two species

On what factor does competition depend?

• Climate change

• Population density

• Genetic variation

• Habitat destruction

As populations increase, competition for which of the following resources increases?

• Food, water, space, and mates

• Light, temperature, and humidity

• Shelter, predators, and prey

• Soil, air, and minerals

What is the definition of predation?

• One organism (predator) kills and eats another organism (prey)

• One organism (prey) kills and eats another organism (predator)

• Two organisms share resources equally

• One organism benefits while the other is harmed

Which of the following is an example of predation?

• A lion chasing and catching a warthog

• Two birds sharing a nest

• A bee pollinating a flower

• A plant absorbing sunlight

What is the term for a close relationship between two different species?

• Mutualism

• Commensalism

• Parasitism

• Symbiosis

What is the definition of symbiosis?

• A close relationship between two different species

• A relationship where one species preys on another

• A relationship where one species is harmed

• A relationship where both species are harmed

In mutualism, what is the outcome for the species involved?

• Both species benefit

• One species benefits and the other is harmed

• One species benefits and the other is unaffected

• Both species are harmed

Which of the following is an example of mutualism involving a bird and a reptile?

• Crocodile & Plover Bird

• Sea Anemone & Clownfish

• Lichen

• Shark & Remora Fish

Which of the following pairs is an example of mutualism found in marine environments?

• Crocodile & Plover Bird

• Sea Anemone & Clownfish

• Lichen

• Bee & Flower