Symbiosis Homework Check in

Symbiotic relationships ​ (a)   biodiversity​ because, often, the different species support each other to thrive and survive.

• increase
• decrease

Tags

Bio.2.1.3

Match the following types of relationships to their descriptions:

• Commensalism

• Both organisms are harmed by fighting over a resource

• Mutualism

• Both organisms benefit (help each other)

• Parasitism

• One organism benefits while the other remains neutral

• Competition

• One organism benefits at the expense of the other

Tags

Bio.2.1.3

Macaws (a large, tropical bird) have strong beaks that can bit through thick shells. They are messy eaters, often opening nuts and droping 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).

Tags

Bio.2.1.3

Match the following types of relationships to their descriptions:

• Mutualism

• 
• Parasitism

• 
• Competition

• 
• Commensalism

• 

Tags

Bio.2.1.3

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

Tags

Bio.2.1.3

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

Bio.2.1.3

In mutualism, both species ​ (a)   , whereas in competition both species are ​ (b)   . Competition often leads to the evolution of new ​ (c)   .

• benefit
• harmed
• traits
• colors

Tags

Bio.2.1.3

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

Bio.2.1.3

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

Bio.2.1.3

Which of the following shows the symbiotic relationship between the Rodent and the Bird?  

• Mutualism
• Predation
• Competition
• Commensalism

Tags

Bio.2.1.3