What are two important jobs of the respiratory system?

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above

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.

When is it most common for humans begin to develop a sense of self worth? a. adolescence b. early childhood c. infancy d. late childhood