Bats are mostly blind so they cry (kind of a screaming/screeching sound), and then they can see the sound waves either bounce off of something that is blocking their way, or just keep going straight in front of them. Then they know weather to turn or go straight.
i dont kno do i! i wanted to kno if u did!
because they cant give continuous signal :)
yes, some do.
yes, some do.
it is a (n) pulsar
yes, some do.
yes, some do.
For the same reason that radar and sonar systems don't transmit continuously.The information value of these systems comes from interpreting the echo, andit's very difficult ... virtually impossible ... to receive a low-level signal at the samefrequency while you're transmitting.That's also the reason why the protocol for the most effective human conversationinvolves alternate periods of talking and buttoning it.
Gamma rays
They emit a sound that bounces off surroundings and makes it's way back to the bat. It can then navigate itself around trees, other animals, and etc.
Because they both emit regular pulses of electromagnetic radiation
Pulsars and neutron stars emit a beam of electromagnetic radiation.
They use ultrasound. They emit high-pitched 'squeaks' which are reflected off objects close to them - and the sound is picked up by their ears. The minute differences in the sound volume in each ear - tells the bat where the object is.
The ultrasound probes are being used to check the uterus for the women and prostate glands for men. They emit sound waves which would then come back to register the sonography of the organs.