Choose the word that best completes this sentence. to ensure that all power tools and equipment are safe, employers must ensure that exposed metal parts are properly

Why do rna viruses appear to have higher rates of mutation? a) rna nucleotides are more unstable than dna nucleotides.b) replication of their genomes does not involve proofreading.c) rna viruses can incorporate a variety of nonstandard bases.d) rna viruses are more sensitive to mutagens.

Which is shown to be an effective treatment for depression?

1. imagine that you are a prehistoric artist and write a 350 to 500 word story explaining why you are an artist and what the purpose of your art is. be clear about what time period and location you are from. you may do research about prehistoric art, but be sure to include a bibliography if you do, and credit any direct quotes you use. 2. go to an art store and purchase some clay. now using only your hands, sticks, feathers, or other natural objects, create your own statuette or primitive tool. bake it in the sun or in a fire. if you can find natural pigments, you may color your work. take a digital photo of your finished work and send it in. use complete sentences and cite all of your resources.