Ecological Relationships and Trophic Levels

In a commensal relationship

• both parties benefit

• neither party benefits

• one party benefits and the other is helped

• one party benefits and the other is neither helped nor harmed

The koala living high in a tree eating eucalytus leaves is a _____, while a mouse will live in almost any environment and consume seeds, nuts, and grains is a ______.

• herbivore, primary consumer

• generalist, specialist

• primary consumer, scavenger

• specialist, generalist

The amount of energy that usually transfers from one trophic level to the next...

• 10%

• 20%

• 90%

• 50%

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

A pilot fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

• Mutualism

• Commensalism

• Parasitism

• Decomposition

A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

• Predator-Prey
• Commensalism
• Mutualism
• Parasitism

Tags

NGSS.MS-LS2-2

When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.

• decrease
• increase
• stay the same
• divide in half

Tags

NGSS.MS-LS2-4

A mongoose eating ticks off a warthog, or a starling eating ticks off a cow are examples of what type of symbiotic relationship?

• Cooperation

• Parasitism

• Commensalism

• Mutualism

A feeding relationship where one organism hunts and one is hunted, such as a Lynx hunting a snowshoe hare, is known as:

• Commensalism

• Decomposistion

• Mutualism

• Predator-Prey

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

All energy in an ecosystem comes from the sun. This energy is passed through the ecosystem as organisms eat other organsims.

• Ominvores

• Herbivores

• Detritivores

• Flow of energy

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

In a commensal relationship

• both parties benefit

• neither party benefits

• one party benefits and the other is helped

• one party benefits and the other is neither helped nor harmed