I have already answered you. It's B
Answer:
Review the procedure
Explanation:
Reviewing the procedure needs to be done before beginning a laboratory investigation, so the investigation can be done correctly and the correct data can be collected.
The other 3 answer choices should be done during or after the investigation, as they all involve data. Data is collected during the investigation.
<span>nucleotide, gene, DNA, chromosome or letter B</span>
Answer:
Biological transmission involves the reproduction or propagation of agent or pathogens within the arthropods vectors before transmission begins.while mechanical transmission involves just transfer of pathogens/agents from an infected host,to another suspectable host directly(direct mechanical transmission) or when anthropoids transmits pathogens obtained from from a contaminated source.(indirect mechanical transmission).
The two mechanisms represented mode of transmission of diseases.
