Question

Did you send the email???​

Answer 1

Nanotechnology is the term given to those areas of science and engineering where phenomena that take place at dimensions in the nanometre scale are utilised in the design, characterisation, production and application of materials, structures, devices and systems.

yes

Answer 2

Answer:

Amphibians lack scales whereas skin of fishes are covered with scales. Amphibians have mucous glands. Amphibians have a three-chambered heart unlike fishes, their hearts have only two chambers