Question

4. Write a note on the how aquatic animals and insects move.
5. Define migration. Why do animals migrate? Explain with examples.​

Answer 1

Answer:

4) An aquatic animal is an animal, either vertebrate or invertebrate, which lives in the water for most or all of its lifetime.Many insects such as mosquitoes, mayflies, dragonflies and caddisflies have aquatic larvae, with winged adults. Aquatic animals may breathe air or extract oxygen that dissolved in water through specialised organs called gills, or directly through the skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land).

4) usual or seasonal movement of animals from one region to another is known as migration.  An example of migration is geese flying south for the winter. flamingo or Siberian crane migrating to India.