Community Ecology

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

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

• producer
• prey
• predator
• decomposer

Tags

NGSS.MS-LS2-2

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

• Community

• Colony

• Population

• Ecosystem

Food webs are models that show

• one sequence of producers and consumers.

• complex networks of feeding relationships.

• stored energy in food chains

• only primary consumers in an ecosystem

Tags

NGSS.MS-LS2-3

Primary succession is... 

• When a hurricane causes a river to flood its banks
• When a farmer ploughs his fields to remove all existing plant life.
• When fire burns through a forest and ills all vegetation less than 1m tall.
• When increasing temperature causes a glacier to recede from an area of rocky ground

Tags

NGSS.MS-LS2-4

The secondary succession is 

• lichens and mosses arrive on bare rock and begin to trap soil
• a complex, stable ecosystem is formed
• plants grow in an area devastated by a flood
• plants grow in a newly formed pond

What effect does biodiversity have on a community?

• It makes destruction by insects impossible. 
• It makes primary succession more likely.   
•  It enables species to survive in a desert.
• It enables the community to withstand changes.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The type of succession that occurs in an area with no life is:

• Intraspecific
• Interspecific
• Primary
• Secondary