Which condition is required for viruses to reproduce? a they must enter another virus structure b they must enter the cell of another organism c they must come in contact with water or d they must encounter a virus with genetic material different from their own

Answer is : B

Viruses are non-living infectious agents that only reproduce when present inside the body of another organism. Viruses need a host to infuse their DNA to replicate. Outside the host body, they crystallized.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements