In a famous science fiction movie, a group of scientists in a submarine are miniaturized and injected into a patient's bloodstream. their mission is to travel to the patient's brain and remove a blood clot that has caused the patient to become comatose. during their journey to the brain, the shrunken scientists encounter many of the structures discussed in this lesson and have some dangerous encounters with them. they have to move quickly to avoid being attacked by the patient's immune system, which recognizes them as foreign objects. for this discussion, imagine yourself as one of these scientists. respond to the following questions from the viewpoint of traveling through a patient's bloodstream in a miniaturized submarine.
1. what type of blood cell would pose the greatest threat to you? explain the reason for your choice.
2.imagine that your miniaturized submarine is attacked by a defensive blood cell. write a short description about the specific type of blood cell that includes its appearance and the attack.
3. besides the defensive blood cells, what other threats would you face from the patient's immune system? describe a few structures that would attempt to destroy you and the way they would attempt to do this.

The herpes viruses are important enveloped dna viruses that cause disease in vertebrates and in some invertebrates such as oysters. some of the human forms are herpes simplex virus (hsv) types i and ii, causing facial and genital lesions, and the varicella zoster virus (vsv), causing chicken pox and shingles. each of these three actively infects nervous tissue. primary infections are fairly mild, but the virus is not then cleared from the host; rather, viral genomes are maintained in cells in a latent phase. the virus can later reactivate, replicate again, and infect others.in electron micrographs of hsv infection, it can be seen that the intact virus initially reacts with cell surface proteoglycans, then with specific receptors. this is later followed by viral capsids docking with nuclear pores. afterward, the capsids go from being full to being "empty." which of the following best fits these observations? a) viral capsids are needed for the cell to become infected; only the capsids enter the nucleus.b) the viral envelope is not required for infectivity, since the envelope does not enter the nucleus.c) only the genetic material of the virus is involved in the cell's infectivity, and is injected like the genome of a phage.d) the viral envelope mediates entry into the cell, the capsid mediates entry into the nuclear membrane, and the genome is all that enters the nucleus.

If a basic life insurance illustration is used by an insurance producer in the sale of life insurance and the policy is applied for as illustrated, a signed copy of that illustration must be submitted to the insurer and provided to the applicant?

What is one way that cold and flu viruses spread? a.by transfusing contaminated blood b.by inhaling contaminated droplets c.by eating contaminated meat d.by drinking contaminated water