Quiz #2-2 pts. each question.

A tapeworm and a cat have this type of relationship.

• mutualism
• parasitism
• commensalism
• competition

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

Which symbols best describe parasitism?

• +,+
• +,-
• +,0
• -,0

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

• Predation

• Parasitism

• Commensalism

• Mutualism

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.  What kind of relationship is this?

• Mutualism 
• Parasitism 
• Commensalism 

Which symbols best describe mutualism?

• +,+
• +,-
• +,0
• -,0

Which of these is NOT an example of interspecific competition?

• Oysters and barnacles competing for settling space on the rocky shore

• Goats and sheep in the same paddock competing for grass

• Ferns and kawakawa competing for shaded locations in a forest

• Stags competing for mates

Which of these best describes interspecific competition?

• One species benefits while another species is harmed

• One species benefits while another species is killed

• One species is harmed and the other species is harmed too

• One species benefits while nothing happens to the other species

Which of these is an example of intraspecific competition?

• Hyenas fighting one another for access to food

• Barnacles and oysters competing for space on the rocky shore

• Eucalyptus trees secreting chemicals that kill of nightshade plants

A fish called a remora gets a ride on the shark.  When the shark eats, the remora eats the pieces that float around.  The shark is not hurt or helped by the remora.

• Mutualism
• Commensalism
• Parasitism
• Predation