Why would cells lining a tube-like structure such as the trachea need to be ciliated?

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

Why is there more biomass at the producer level that at the consumer levels ? how does this relate to the 10% rule ?

If we use blank to build a roof of the house and the temperature inside the house were the main c if we use to build the roof of the house, then the temperature inside the house will remain cooler. if we use to build the walls and floors of the house then the temperature inside the house will remain cooler. if we use to bring electricity into the home then it will allow electricity to flow into the home at a faster rate . if we use to construct the latches on the windows and doors then the magnetism will keep the latches secure.