Question

Radar Tracking



Scientists who study migrating organisms need a way to track the organisms' movement. They also need to determine the number of organisms in a certain location at a given time. This information helps scientists better understand changes in migration behavior.

Radar is a technology used by scientists to track smaller organisms like birds, bats, and flying insects during migration. For example, radar can detect the number of bats in a swarm of bats. The diagrams shown below represent how a signal is sent from a transmitter toward an object, such as a bird, and bounces back to the receiver.



The first diagram shows a transmitter and an arrow labeled 'signal sent out' pointing from the transmitter to a bird. The second diagram shows a receiver and an arrow labeled 'signal bounced back from bird' pointing from the bird to the receiver.





A student wants to compare radar technology with several other types of technologies. The student listed some information about these technologies in the chart shown below.



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How is the function of radar technology similar to the other technologies listed?


They are all used on computer screens.


They are all used for collecting data.


They are all only digital tools.


They are all used for communicating information.

Answer 1

They are all used for collecting data.

Radar, like the other technologies listed, sends or receives signals to detect and measure things (location, number, movement), so its primary function is gathering information about the environment.