Community Ecology and Symbiosis

A human & a Tape Worm: The tape worm gets a place to live in the intestines of the human and food from the human. The human loses weight and nutrients from the tape worm.

• Mutualism
• Commensalism
• Parasitism

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Bird & Tree: A bird builds a nest in a hole in the trunk of the tree. It is protected from the rain and predators. The tree is not harmed or helped by the bird.

• Mutualism
• Commensalism
• Parasitism

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Tags

NGSS.MS-LS2-2

Tree kangaroos live in the upper branches of trees in the rainforests of Queensland, as well as on the island of New Guinea. This is an example of the tree kangaroos ___.

• niche
• habitat
• community
• population

What is the name of an animal that is hunted and eaten by other animals?

• producer
• prey
• predator
• decomposer

Tags

NGSS.MS-LS2-2

The concept that predators can affect the size and distribution of other animals is known as 

• predation
• herbivory
• tolerance
• limitation

Tags

NGSS.MS-LS2-4

Groups of different populations that live in a given area and interact are called a(n)...

• Community

• Colony

• Population

• Ecosystem

According to the competitive exclusion principle, two species cannot continue to occupy the same:

• Habitat
• Niche
• Territory
• Range

Resource partitioning is best described by which of the following statements?

• Competitive exclusion results in the success of the superior species.
• Slight variation in niche allows closely related species to coexist.
• Two species can coevolve and share the same niche.
• Species diversity is maintained by switching between prey species.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Character displacement has occurred if:

• Two species in the same habitat evolve to be more different than if they are in different habitats.
• One species chases the other out of the habitat they previously shared.
• A characteristic is lost when an organism migrates into a new area.
• A characteristic lost by one species is adopted by another.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4