Answer:
an animal of the large phylum Chordata, comprising the vertebrates together with the sea squirts and lancelets.
Explanation: That is the definition of a chordata.
Oxygen and it removes all other toxin
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Answer: They have both RNA and DNA
Explanation: Rickettsiaceae possess both nucleic acids RNA and DNA, this is a distinctive characteristics of the organism. They are pleomorphic organisms and are mostly gram-negative organisms.
Rickettsiaceae are infectious to arthropods therebygiving making them an intermediate host or carriers and human can be infected via biting from infected arthropods.
