PLEASE PLEASE SOMEONE PLEASEE HELP

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria

The science for classifying and naming organisms is known as

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.