Bacterial FtsZ is required for A. DNA replication B. formation of the contractile ring C. bacterial chromosome partitioning D. translocation and decatenation of DNA

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".