Compared to urban roads, rural roads tend to have
a. interspersed hazards over long str...
Health, 06.12.2019 06:31 cherokeesiouxw72
Compared to urban roads, rural roads tend to have
a. interspersed hazards over long stretches
b. many hazards in short stretches
c. more pedestrians
d. more delivery trucks
Answers: 2
Health, 23.06.2019 04:00
Viruses use the host's machinery to make copies of themselves. however, some human viruses require a type of replication that humans do not normally have. for example, humans normally do not have the ability to convert rna into dna. how can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires? a) the virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.b) the viral genome codes for specialized enzymes not in the host.c) the virus infects only those cells and species that can perform all the replication roles necessary.d) viruses can stay in a quiescent state until the host cell evolves this ability.
Answers: 1
Health, 23.06.2019 18:20
Some bacteria injure cells by giving off poisons called pathogens antibodies phagocytes toxins
Answers: 2
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