Which of the Following Were NOT Used to Conclude That

question 23

Multiple Choice

Which of the following were NOT used to conclude that antennal photoreceptors are involved in proper orientation in monarch butterflies?

• A) Individuals placed in a light chamber oriented differently than controls.
• B) Clock-shifted individuals oriented differently than controls.
• C) Individuals with their antennae removed oriented differently than controls.
• D) Individuals with black-painted antennae oriented differently than controls.
• E) Individuals without antennae could fly normally.

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Definitions:

Electrical Activity

Movements of electrons or ions that produce currents and voltages in biological systems, crucial for nerve and muscle function.

ECG

An electrocardiogram, a diagnostic tool that records the electrical activity of the heart to check for different heart conditions.

Q-T Interval

A measurement on an electrocardiogram (ECG) that represents the time between the start of the Q wave and the end of the T wave, indicating the time taken for ventricular depolarization and repolarization.

QRS Complex

A series of deflections in an electrocardiogram (ECG) that represents ventricular depolarization before ventricular contraction.