What are the differences between a foodborne infection and food poisoning?
What will be an ideal response?
Food poisoning is not due to a living pathogen but rather an ingested toxin which produces symptoms within 6 hours of exposure, much faster than a bacteria could due to needing to grow and reproduce. Symptoms of food poisoning are usually nausea and vomiting, and sometimes diarrhea and abdominal pain whereas an infection produces fever, headache, muscle aches, nausea, diarrhea, and or abdominal pain. Recovery is usually within 24 hours but can take several days in severe cases, where as a foodborne infection takes days to weeks for the body to remove the bacteria.
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DNA replication occurs through a ________ process.
A) conservative B) semiconservative C) dispersive D) transformative
In both spermatogenesis and oogenesis, one sperm/egg forms from one primary spermatocyte/oocyte.
Answer the following statement true (T) or false (F)
Which of the following statements are TRUE about energy transfer?
a. vegetarianism is equally as energy efficient as eating meat b. most of the energy from one trophic level is transferred to the next trophic level c. energy is lost between trophic levels as heat, metabolism, and waste d. indigestible plant parts transfer energy to the next trophic level e. all of the above
When a species of bird preys upon the seeds of a plant and favors the smallest seeds,
A) the prey species functions as an agent of natural selection on the predator. B) natural selection favors individual plants that produce the largest seeds. C) the plants compensate for their losses by producing proportionately more smaller seeds. D) the bird species is unaffected when directional selection favors plants that produce the largest seeds.