All living organisms are classified into one of three domains: Bacteria, Archaea, and Eukarya. Organisms in the domianns Bacteria and Archaea have which of the following in common?They are eukaryotic. They are multicellular, They are prokaryotic. They are heterotrophic.

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic