which motion causes day and

How can you keep track of variables in a science experiment?

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

Which of the following describes how binary fission and mitosis are similar? a)they are both used for growth or repair b)they both break down membrane-bound nuclei c)both invoke the replication of a single stand of dna d)both replicate genetic material