100 POINTS PLEASE HELP ASAP Which nucleotide is in DNA but not in RNA? A. thymine B. adenine C. cytosine D. guanine

Which of the following is characteristic of the lytic cycle? a) viral dna is incorporated into the host genome.b) the viral genome replicates without destroying the host.c) a large number of phages are released at a time.d) the virus—host relationship usually lasts for generations.

Which action is the cerebrum responsible for? a. breathing b. coordination c. problem solving d. balance and one more question which characteristic true of both boys and girls during puberty? a. a curvier shape b. a deeper voice c. weight loss d. body hair

Explain why many people are concerned about uv rays? explain what causes the skin to burn in the sun? explain why people should avoid the sun if taking a photosensitive medication?