What is the primary cause of viral hemorrhagic fever in the United States? What is the typical cause of death for this disease?
What will be an ideal response?
Answer: Hantaviruses usually cause viral hemorrhagic fevers in the United States. Bleeding (or hemorrhaging) is rarely the cause of death for this disease; it is instead usually organ system failure caused by hantavirus that kills an individual. Vascular systems of organs are disrupted by the pathogen that also decreases oxygen and waste transport as well as temperature control.
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Which number represents the atomic weight of oxygen?
A. 18 B. 16 C. 6 D. Not enough information given
Which of the following best describes the double-helix of DNA?
A. It has directionality B. The strands are arranged in an anti-parallel arrangement C. The strands are complementary D. All of the answers are correct
A continual source of genetic variation in populations is ________, which changes one allele into another.
A) mutation B) migration C) random mating D) natural selection
Select the incorrect statement related to fungi.
A. Some fungi are able to grow to many hectares in size. B. Some fungi can break down cellulose into its glucose subunits. In addition, some fungi are predaceous. C. Cheese, wine, and soy sauce are but a few examples of foods dependent on fungi for their production. D. All fungi secrete digestive enzymes and practice external digestion. E. One method of reproduction in fungi is by flagellated sperm. Water is a requirement for those particular fungi to reproduce.