Quiz 6: Symbiosis, Invasive Species, and Succession (Sp23)

Match the following types of relationships to their descriptions:

• Commensalism

• Both organisms benefit (help each other)

• Parasitism

• One organism benefits at the expense of the other

• Competition

• One organism benefits while the other remains neutral

• Mutualism

• Both organisms are harmed by fighting over a resource

​ (a)   is a common type of symbiosis because all the species involved benefit. For example, a hummingbird drinks ​ (b)   from a flower, gaining food. The flower is ​ (c)   by the bird. Both species help each other.

• Mutualism
• nectar
• pollenated
• Parasitism

Tags

NGSS.MS-LS2-2

Macaws (a large, tropical bird) have strong beaks that can bite through thick shells. They are messy eaters, often opening nuts and dropping them on the ground, leaving them behind. Other animals eat the dropped food. What type of relationship is this?

• commensalism

• parasitism

• mutualism

• competition

Answer explanation

Commensalism is when one species benefits (the animals eating the dropped food) while the other is neutral (the Macaw).

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NGSS.MS-LS2-2

In ​ (a)   , one species harms another species to benefit themselves. For example, a flea bites a dog to get ​ (b)   . This leaves the ​ (c)   with itchy bite marks.

• parasitism
• food
• dog
• commensalism
• flea

Match the following types of relationships to their descriptions:

• Mutualism

• 
• Competition

• 
• Commensalism

• 
• Parasitism

• 

Tags

NGSS.MS-LS2-2

In the temperate forest, there are Autumn Olive bushes that produce berries. Cedar Waxwings eat these berries, as do Woodland Voles. Woodland voles are eaten by snakes. Snakes are eaten by Red-tailed Hawks, which are the apex predator. Identify which 2 species are in competition:

• Woodland vole

• Autumn Olive

• Cedar waxwing

• Red-tailed Hawks

Aztec ants live in Cecropia trees. The tree provides a home for the ants and the ants protect the tree from herbivores. What kind of relationship is this?

• parasitism

• mutualism

• competition

• commensalism

Tags

NGSS.MS-LS2-2

A cowbird lays its eggs in the nest of another bird. The other bird expends energy to take care of the baby, finding it food until it's big enough to leave the next. What kind of relationship is this?

• parasitism

• mutualism

• commensalism

• competition

Tags

NGSS.MS-LS2-2

Barnacles create home sites by attaching themselves to whales.  The whale is unaffected.  What kind of relationship is this?

• commensalism

• mutualism

• predation

• laziness

Honey guide birds alert and direct badgers to bee hives.  The badgers then expose the hives and feed on the honey first.  Then the honey guide birds eat.  What kind of relationship is this?

• mutualism

• commensalism

• predation

• competition

Tags

NGSS.MS-LS2-2