QRS complex refers to the combination of the Q, R, and S waves, and indicates ventricular depolarization and contraction (ventricular systole).
Ventricular rate can be calculated by determining the time interval between QRS complexes. The duration of the QRS complex is normally 0.06 to 0.10 seconds. This relatively short duration indicates that ventricular depolarization normally occurs very rapidly.
P QRS and T waves in electrocardiogram signifies the P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization.
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There'd be 1500 nucleotide bases
Email is the electronic mail that can send and receive messages through the net. An icon used for the file attachment in the mail is a paper clip.
<h3>What is the paperclip icon in the mail?</h3>
Icons are the symbols used for the representation of the activities in the message bar of the email. In the mail, a paperclip is used to represent the attachment for the files.
The Attachment icon allows linking the files from the system in the mail to send. The files can be docx, pdf, png, jpg etc.
Therefore, the option A. paperclip icon is used to indicate an attachment in mails.
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Answer:
There are three modes of heat transfer.
1. Conduction
2. Convection
3. Radiation
1. Conduction: Heat transfer through the process of conduction occurs in substances which are in direct contact with each other. It generally takes place in solids.
For example: When frying vegetables in a pan. Heat transfer takes place from flame to the pan and then to the vegetables.
2. Convection: In this process, heat is transferred in the liquid and gases from a region of higher temperature to a region of lower temperature. Convection heat transfer occurs partly due to the actual movement of molecules or due to the mass transfer.
For example: Heating of milk in a pan.
3. Radiation : It is the process in which heat is transferred from one body to another body without involving the molecules of the medium. Radiation heat transfer does not depend on the medium.
For example: In a microwave, the substances are heated directly without any heating medium.
The answer is D.) respitory tract
