Use the Following Information to Answer the Following Question(s)

question 39

Multiple Choice

Use the following information to answer the following question(s) .
Malaria is an infectious disease caused by a unicellular eukaryotic organism belonging to the genus Plasmodium. These eukaryotic organisms are transmitted from one person to another by the female Anopheles mosquito when it feeds on human blood. Within humans, the Plasmodium spp. destroy red blood cells and, without effective treatment, serious infections can lead to death. Currently, more than 400 million people are afflicted with malaria and between 1 to 3 million people die from it each year. Historically, a chemical compound called quinine has been used in developing effective drugs against malaria. In its natural environment, quinine is produced by certain trees native to South America. This chemical is synthesized in the outer layer of tree trunks and acts as an herbivore deterrent.
-Based on the relationship between Plasmodium spp.and humans,these organisms would be considered ______.

• A) parasites
• B) hosts
• C) producers
• D) carnivores

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Definitions:

Normally Closed

A term referring to an electrical switch or circuit state where the contacts are closed (allowing current flow) when no actuating force is applied.

Electrical State

An electrical state refers to the condition of an electrical component or system, such as being charged, discharged, on, or off.

Drum Switch

A switch used to change the direction of rotation of an electric motor or machine tool.

Selector Switch

A switch that allows the user to choose between multiple states or modes of operation within a circuit by turning a knob or lever to the desired position.