For what are light flashes used by luminscent fishes?

What are the methods used in harvesting fishes?

What are cat fishes? Name two cat fishes used in fishery.

One light flashes green every 15 seconds and a second light flashes red every 6 seconds. If they flash together and you begin counting seconds, after many seconds will they next flash together?

What are the cat fishes? Name two cat fishes used in fishery.

Assertion. Many deep sea fishes are luminscent. Reason. They use light flashes to attract prey or mate and to startle predators.

What term is used for induced breednig of fish ?

If a thunder clap is heard 5.5 s later than the lighting flash observed from the earth, then the distance of the flash will be (Velocity of sound in air 330 m/s)

As part of a laboratory experiment, the number of times a light id flashed on a certain culture of bacteria is reduced 20 percent each day. If the light flashed 704 times on the fourth day of the experiment, then the number of times it flashed on the first day is closest to

(a) What is the function of pinna ? (b) You observe that the delay between a lighting flash and the thunder is 8 s . How far away is the lightning ?