The answer will be follicle
That should make it more clear . Its the same thing . Both seta and cheta or chaete means bristles. I think the term can be used interchangeably.
True. 100% true. Pollution is bad, and living things - even humans - can be effected in it in a negative way, so it's true
False !! covallent bond is formed by sharing ; iconic bond is formed by donation or transferring electrons !!