4.17 Ecological Relationships Quiz

Which situation would encourage competition?

• The amount of vegetation decreases due to a drought in a rabbit habitat.

• A long, wet season results in additional earthworms in a robin habitat.

• A warm, sunny season, results in a bloom of algae growth in a fish habitat.

• A dry season results in additional open caverns for foxes to use as shelters.

Under which condition is competition among wolves most likely?

• When new vegetation grows in the habitat, bringing new prey to the area

• When a disease kills a large amount of the rabbit population

• When there is an increase in sunlight in the habitat

• When there is abundant rainfall in the area

Under which condition is competition among fish most likely?

• When there are fewer fish in the habitat

• When amount of available plankton is greatly reduced

• When there is abundant rainfall in the area

Which of the following describes a relationship of mutualism?

• 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

What type of relationship does a moray eel and fish have if the eel eats a fish swimming by?

• mutualism

• commensalism

• predator-prey

• parasitism

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

Which of the following describes a relationship of predator-prey?

• 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

Which of the following describes a relationship of parasitism?

• 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

what is an organism that is not native to a particular area known as?

• dispersion

• invasive species

• native species

which factor has likely led to the increase in invasive species in recent decades?

• increased global trading and imports

• temperature changes

• better travel inspections