Cyanobacteria have been engineered to produce isobutanol directly. what advantage does this have over other alternative biofuels? a. it is an inherently renewable fuel source. b. multiple processing steps can be avoided. c. they produce chemical energy through photosynthesis. d. they make a biofuel alternative to gasoline.

Sediment layers stop lateral spreading when: they encounter a barrier they encounter an opposing current they run out of additional sedimentary material

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

What does the positioning of transcription factors determine?