Which of the Following Would Be Considered a Parasitic Relationship

question 9

Multiple Choice

Which of the following would be considered a parasitic relationship?

• A) Some species of crabs decorate their shells with sea anemones and other corals. These "decorations" help camouflage the crab, and the movement of the crab from one area to the next exposes the corals and anemones to different sources of food.
• B) Some spiders do not build webs, but live in the web of another species. When a prey item is caught in the web, the non-web building spider will sneak in and steal the prey.
• C) A praying mantis hunts and eats a fly.
• D) The longest tapeworm removed from a human was approximately 11 meters long. Tapeworms do not have a digestive system, but obtain all of their nutrients from the host, which can cause problems for the host especially if he or she is undernourished.
• E) Pseudoscorpions are small, harmless arachnids. To move from one place to another, they will sometimes latch onto the legs of flies and thus be carried long distances that they would not readily be able to traverse.

---

Definitions:

Winning

The act of being successful or victorious in a contest or competition.

Forest Fires

Uncontrolled fires that occur in wooded areas, which can have devastating effects on wildlife, vegetation, and human structures, often exacerbated by dry conditions and high winds.

Acres

A unit of area commonly used in the United States, equivalent to 43,560 square feet or about 4047 square meters.

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, showing how much variation exists from the average.