Which of the Following Is a Sign Stimulus

question 101

Multiple Choice

Which of the following is a sign stimulus?

• A) a cuckoo chick evicting the original chicks in the nest
• B) a mother rat picking up young rats and returning them to the nest
• C) the open mouth of a peeping baby bird
• D) an innate learning

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Definitions:

Dynamic Balance

The state achieved when a rotating object distributes its mass evenly around its rotation axis, minimizing vibration and improving performance.

Counterweights

Weights used to balance rotating parts in machinery, ensuring smooth operation and reducing vibration.

Out-of-phase

A condition in which two or more periodic signals (waveforms) do not align properly in time, potentially causing interference or reduced performance in systems such as electrical or audio applications.

Slip Splines

Used on a drive shaft (propeller shaft) stub and yoke assembly to permit variations in length caused by frame and suspension oscillations while transmitting drive torque.