What type of bacteria causes food poisoning

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?

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 ?