Male crickets create sounds that we call "chirps" by rubbing one wing against the other. If another male presents himself to the singing male, the two males will fight. First they interlock antenna, then they spread their jaws, and finally they wrestle. is/are examples of communication .

Communication is the process by which individual share their feeling, emotions and other important information. Communication in case of animals can be done verbally or by the means of chemical.

The communication can also be done by friction produced during the sound. As the information given in the question indicates that all the activites or actions that are done by crickets are used in the communication. In these activities, the sender sends the information and the information is tehn perceived by the receiver.

1: The age of Carl's grandfather is a prime number

2: The age of Carl's grandfather has exactly 2 factors

3: the number 5 is a factor of the age of Carl's grandfather

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