A sterile item is free of
A. microbes.
B. endospores.
C. viruses.
D. prions.
E.
microbes, endospores, AND viruses.
E
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Which of the following is not a characteristic of lipid A?
A. Toxic in nanogram amounts B. Heat stable C. Weakly immunogenic D. Neurotoxic
_____ trigger immune responses
a. Cytokines d. Antigens b. Lysozymes e. Histamines c. Immunoglobulins f. all of these
The letter “D” from the above figure represents
a. ectoderm. b. endoderm. c. mesoderm. d. neural plate. e. all of these.
The Florida panther, Puma concolor coryi, is one of the most threatened species on Earth, with only 80-00 individuals remaining. Their population is most threatened by humans, habitat loss, and their own poor health due to genetic diseases. Some conservationists want to introduce new individuals from Texas, the mountain lion, Puma concolor. Scientists are currently uncertain whether the Florida panther and the Texas mountain lion are the same or different subspecies.What is the most likely explanation for the Florida panthers' poor health?
A. Environmental pollutants are poisoning the panthers. B. The panthers are inbreeding, so more individuals will be homozygous for recessive mutations. C. Environmental pollutants are causing genetic mutations in their DNA. D. The panthers are unable to find food, so they are starving to death. E. The panthers are forced to live in close proximity to each other, causing a prevalence of communicable disease.