Relationships

Which symbols best describe parasitism?

• +,+

• +,-

• -,0

• +,0

Which symbols best describe commensalism?

• +,+

• +,-

• +,0

• 0,0

A tick and a dog have this type of relationship.

• mutualism

• Commensalism

• parasitism

Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.

• mutualism

• parasitism

• commensalism

• competition

Red-billed oxpeckers are birds that feed on parasites found on an impala. The impala gets rid of parasites and the red-billed oxpeckers get a yummy dinner. This is an example of _______.

• Mutualism

• Parasitism

• Commensalism

• Competition

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

• Mutualism

• Commensalism

• Parasitism

• Competition

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

• Mutualism

• Commensalism

• Parasitism

A cuckoo and a warbler are both birds. A cuckoo will find the nest of warbler instead of building her own, and she harms the warbler by knocking a warbler egg out of nest and laying her own. When the warbler mother returns, she isn’t aware of the switch. The warbler will then raise the baby cuckoo bird instead of her own baby. Which term best describes this relationship?

• Mutualism

• Parasitism

• Commensalism

Tags

NGSS.MS-LS2-2

Nematodes (a round worm) live in plants and gain nourisment from the plant but do not seem to harm it. What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

• predation

Tags

NGSS.MS-LS2-2

Bromeliads and trees are in a commensal relationship because

• the tree provides shelter and an environment for the bromeliad

• the tree is harmed from the bromeliad taking food from it

• the tree is not harmed or helped by the bromeliad

• the tree takes nutrients from the bromeliad

Tags

NGSS.MS-LS2-2