John took home some leftover ham and potato salad from a picnic, reheated the ham on the stove, ate it, and got sick two hours l
ater. John thought the heating made his food safe because it would have killed any bacteria present. He didn't know that __________ produces a heat-stable toxin.
<em>S. aureus</em> is a toxin producer and even though the bacteria can be destroyed with heat, <em>its toxin is heat stable</em>, this means that it can survive after heating producing food poisoning. This kind of poisoning occurs in foods that require hand preparation, like the potato salad or ham in the example, especially because in the example those food were at room temperature, in the picnic, allowing the<em> S. aureus</em> to produce the toxin.
I hope you find this information useful and interesting! Good luck!
An example some organisms unconsciously drive the selection of others is DOMESTICATION in plants
Explanation:
In plant domestication, unconscious selection brought about by the fact that the plants concerned were taken from their original wild habitats and placed in new and very different human-made or human-managed environments.
The shift in the ecology led automatically to drastic changes in selection pressures. Numerous adaptations vital for survival in the wild environments lost their fitness under the new sets of conditions. New traits were automatically selected, resulting in the build-up of characteristic “domestication syndromes,” each fitting the specific agricultural environment provided by the farmer.
With this explanation, it can be established that the wild plants unconsciously drive the selection of domestic plants, through a change in habitat by farmer
A “mutation” changes the instructions of a gene, which can also change the protein. Sometimes this change makes it so the protein can't do its job as well. And this is what happens with sickle cell anemia. A mutation in the hemoglobin gene changes the hemoglobin protein in a way that causes sickle cell anemia.
