Competition, Predation, Symbiosis and Mutualism

A crab is protected from fish when an anemone rides on its shell. The anemone gets more food.

• Commensalism

• Competition

• Predation

• Mutualism

This interaction occurs when lions, cheetahs, and leopards all need the same food source.

• Intraspecific Competition

• Interspecific Competition

• Predation

• Mutualism

Tags

NGSS.MS-LS2-2

Which symbols best describe mutualism?

• +,+

• +,-

• +,0

• -,0

Tags

NGSS.MS-LS2-2

Yucca flowers are pollinated by yucca moths. The moths lay their eggs  in the flowers where  the larvae hatch and eat some of the developing seeds. Both species benefit.  

• Mutualism 

• Parasitism 

• Commensalism 

Tags

NGSS.MS-LS2-2

Which of the following is NOT a symbiotic relationship?

• Competition

• Commensalism

• Mutualism

• Parasitism

Tags

NGSS.MS-LS2-2

Fleas living within a mammal's fur describes this type of relationship:

• Competition

• Mutualism

• Predation

• Parasitism

Orchid vines are skinny and grow on the trunk of trees to get more light and space with no negative effect.

• Mutualism

• Commensalism

• Parasitism

• Competition

Tags

NGSS.MS-LS2-1

Parasites and predators help maintain ecosystem stability because...

• They increase the population of all organisms so ecosystems become diverse

• They decrease the population of certain organisms to ensure no species overpopulates

• They increase the survival of all species

• Any of the above are possible

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

How does competition between organisms maintain ecosystem stability and biodiversity?

• The winners of the competition increase in population size and dominate the ecosystem

• Both organism populations become stronger and larger as a result of the competition

• The population sizes are kept in check due to limited resources

• All of the above are true

Tags

NGSS.MS-LS2-1

When a honeybee pollinates flowers, the bee gets access to nectar, while the flowers gain the chance to reproduce. This is an example of:

• Amensalism

• Commensalism

• Parasitism

• Mutualism