Which of the following lists characteristics of plants?
A. single-cell individuals, prokaryotic, and autotrophic
B. multicellular, eukaryotic, and photoautotrophic
C. multicellular, eukaryotic, and chemotrophic
D. single-cell, eukaryotic, and heterotrophic
B. multicellular, eukaryotic, and photoautotrophic
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The inhalation of cigarette smoke and similar pollutants has a gradual effect on cilia lining the respiratory tract, first causing the beating to slow and eventually stop. How does this change in cilia most directly impact the resistance mechanisms of the host?
A. Acquired immunity due to antibody response would be lost B. Innate host immunity due to mechanical barrier protection would be lost C. Both acquired and nonspecific immunity would be lost D. Neither acquired nor nonspecific immunity would be lost
Which hormones are made in the ovaries?
a. estrogen and progesterone b. follicle-stimulating hormone c. oxytocin and estrogen d. prolactin e. leutinizing hormone and progesterone
Which of the following statements regarding gonorrhea is incorrect?
A. Pelvic inflammatory disease (PID), epididymitis, and infertility are complications. B. It is a sexually transmitted infection. C. Females can have asymptomatic infections. D. A chancre-type lesion develops at the portal of entry. E. Symptoms include painful urination and discharge.
Rheumatic fever is a sequalae of repeated infection with streptococcus pyogenes. The pathogenesis involved in this complication is
A. Antigen-antibody complex precipitation on the valves of the heart B. Molecular mimicry in which some of the bacterial proteins resembles those of endocardium C. An immunological response to a specific Protein A D. An immunological response in the antigen determining the Lancefield classification of the bacterium