Week 5

A relationship between two organisms in which one organism benefits and the other is unharmed...

• Mutualism 
• Competition
• Parasitsm 
• Commensalism 

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

Which symbols best describe parasitism?

• +,+
• +,-
• +,0
• -,0

Tags

NGSS.MS-LS2-2

A relationship between two organisms in which both organisms benefit. 

• Mutualism 
• Competition
• Parasitsm 
• Commensalism 

Tags

NGSS.MS-LS2-2

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

• host, hostess
• parasite, host
• host, parasite
• prey, predator

Which symbols best describe mutualism?

• +,+
• +,-
• +,0
• -,0

Tags

NGSS.MS-LS2-2

A tick and a dog have this type of relationship.

• mutualism
• commensalism
• neutralism
• parasitism

Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 

• parasitism
• commensalism
• mutualism

Tags

NGSS.MS-LS2-2

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism
• commensalism
• mutualism

Tags

NGSS.MS-LS2-4

Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Because their visual abilities are different, they can identify threats that the other animal would not see as readily. 

• parasitism
• commensalism
• mutualism

Tags

NGSS.MS-LS2-2