Relationships of Living Things

In which type of symbiosis do organisms help each other?

• Parasitism
• Mutualism
• Community
• Commensalism

Remoras, fish that attach to sharks and “hitch a ride,” and sharks have a relationship that is best described as

• Mutualism
• Commensalism
• Predator and Prey
• Parasitism

Two members of the same species fight over who gets a certain food. Members of different species try to take over a certain nesting area. These are both examples of

• Community
• Competition
• Mutualism
• Commensalism

The characteristics of a praying mantis allow it to be camouflaged by the green stems of plants. While camouflaged, a praying mantis can feed on other insects that inhabit or feed on a plant. If a praying mantis feeds on natural predators of a plant, which type of relationship is occurring between the praying mantis and the plant?

• Camouflage
• Mutualism
• Competition
• Parasitism

A bird eats a worm. Who is the predator?

• The worm
• The bird
• Neither
• Both

A tick sucks blood from a dog. In this relationship, the tick is the _________ and the dog is the _______.

• Host, parasite
• Parasite, prey
• Parasite, Host
• Predator, Host

After one species disappears, the other species in the ecosystem

• Benefit
• Unbalanced
• Die
• Unaffected

What does symbiosis mean?

• Living separately, no relationship exists between two species
• Living together, close relationship between two species
• Living separately, close relationship between two species
• Living together, no relationship exists between two species

Male bull sea lions fighting for the first pick of female cows during mating system is an example of which symbiotic relationship?

• Parasitism
• Predation
• Competition
• Mutualism

A hawk soaring above a field hunting for a field mouse is an example of which relationship?

• Commensalism
• Mutualism
• Predation
• Competition