Intra and inter specific relationships:

A flea lives on a dog. It bites the dog to get nutrients. What kind of relationship is this?

• Mutualism
• Predation
• Parasitism
• Interspecific competition

A bee lands on a flower. The bee gets food from the nectar. The flower gets pollinated. What kind of relationship is this?

• Interspecific competition
• Intraspecific competition
• Mutualism
• Commensalism

A small bird called an ibis stands on a crocodile’s mouth.  The crocodile does not eat the ibis.  Instead, the bird eats the bacteria and algae off of its teeth. What kind of relationship is this?

• Commensalism
• Mutualism
• Predation
• Parasitism

A person eats meat that has tapeworm eggs in it.  The tapeworm grows and lives inside the person’s intestines.  The person eats but never gets any energy from the food because the tapeworm gets it.

• Parasitism
• Predation
• Interspecific competition
• Intraspecific competition

Two crows fight for living space in the same tree.

• Intraspecific competition
• Interspecific competition
• Predation
• Mutualism

A lion hunts and kills an antelope.

• Intraspecific competition
• Interspecific competition
• Predation
• Parasitism

A symbiotic relationship in which both organisms benefit (+/+).

• Commensalism
• Mutualism
• Parasitism
• Predation

A symbiotic relationship in which one organism benefits and its host is harmed in some way (+/-).

• Commensalism
• Mutualism
• Parasitism
• Predation

A symbiotic relationship in which one organism benefits and the other is neither hurt nor helped (+/0).

• Commensalism
• Mutualism
• Parasitism
• Intraspecific competition

Two members of the same species competing for the same resource (shelter, mates, food, etc).

• Intraspecific competition
• Interspecific competition