The flagella and pili are similar in that they are both composed of

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d