Which One of the Following Is Not an Example of Convection

question 37

Multiple Choice

Which one of the following is not an example of convection?

• A)Smoke rises above a fire.
• B)An eagle soars on an updraft of wind.
• C)A person gets a suntan on a beach.
• D)Spaghetti is cooked in water.
• E)An electric heater warms a room.

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Definitions:

Flagellum

A long, whiplike structure extending from certain cells and used in locomotion. (1) Eukaryote flagella consist of two central, single microtubules surrounded by nine double microtubules (9 + 2 structure), all covered by a plasma membrane. (2) Bacterial flagella are filaments rotated by special structures located in the plasma membrane and cell wall. (3) Archaea have a rotating appendage, an archaellum, for motility.

Micrometer

A precision measuring instrument capable of measuring dimensions to a very small fraction of a millimeter or inch.

Primary Cilium

Single nonmotile cilium on the cell surface of animal cells, especially those of vertebrates; binds specific molecules and serves as a “cellular antenna” in many signaling pathways.

Cellular Antenna

Structures on the cell surface that allow for the reception of external signals, leading to an internal cellular response, akin to a biological signal receptor.