Bundle 9 Review

A living relationship between two species in which one organism is harmed is called...

• mutualism

• commensalism

• parasitism

Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower. This is an example of

• commensalism

• mutualism

• parasitism

• predation

Lions typical fight to death for territory, mates, and food sources. Lions are most likely fighting due to:

• Commensalism

• Mutualism

• Competition

• Parasitism

Some species of barnacles attach themselves to sea turtles or whales. As the whales or sea turtles travel, the barnacles gain access to food in nutrient-rich waters. Their host neither benefits nor is harmed by its riders.

• Mutualism
• Parasitism
• Commensalism

A boxer crab carries a pair of small anemones in its chelipeds, or claws. When approached by a predator, the crab waves the stinging tentacles of the anemones to deter the predator. The anemones benefit from the small particles of food dropped by the crab during feeding. 

• Commensalism
• Mutualism
• Parasitism

A pearlfish spends the day inside the alimentary tract, or intestines, of a sea cucumber. The fish emerges from the sea cucumber at night to feed on small crustaceans. The pearlfish gets a safe place to live. The sea cucumber does not gain anything from the relationship, nor is it harmed. 

• Mutualism
• Commensalism
• Parasitism

A tapeworm needs to eat food that is already digested, so it lives in the intestines of a dogfish shark and derives nourishment from the shark. As a result of the tape worm infestation, the shark is weakened and more vulnerable to disease and predation. 

• Parasitism
• Commensalism
• Mutualism

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

_______________ are the living factors in an environment and may include food sources and other populations.

• Community
• Competition
• Biotic factors
• Population

Temperature, light, air, water, and soil are all  _____  parts of the environment

• alive
• biotic 
• abiotic
• living