Which of the following describes a relationship of commensalism?

Oxpecker birds eat parasitic ticks off the backs of zebras

A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat

A polar bear catches a seal for dinner

Birds feed off the insects that are stirred up from the grasses as cattle move through

Question

Which of the following describes a relationship of commensalism?
		
Oxpecker birds eat parasitic ticks off the backs of zebras
		
A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat
		
A polar bear catches a seal for dinner
		
Birds feed off the insects that are stirred up from the grasses as cattle move through

somy · Answer

commensalism is when  one organism benefits from the other while the other is neither harmed nor gets anything (in other words- the other organism is unaffected)

somy · Answer

in which of the options do u see such relationship?

anonymous · Answer

In science commensalism is when two organism neither benefit or are harmed.  I say D. Hope this helps!

somy · Answer

@SamJD316 its not  when two organism neither benefit or are harmed but its one benefits while the other is unaffected

anonymous · Answer

Thx! For some reason my school said neither benefit, or I just didn't remember right!