Your teeth
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<span>That statement is true
Abiotic factors (such as weather and environment) will determine which organism will be superior compared to another.
For example, Lion will be placed as the highest in the food chain if they're in Savanna environment. But, if we place that lion in the middle of the ocean, the lion will not has the superiority that it has on land.</span><span />
Answer:
I would recommend reading the descriptions and then reading the passage/story if you have not done that yet.
In the scientific method first of all is you need to identify the problem, the problem to your question is why does the dog circle its bed before lying down. Second is the observation to gather some data, you need to observe the dog if what could be the possibility the the dog may do that action. The third is the pre hypothesis, you need to came up with an idea why does the dog do such and action for example the needs to find a correct spot to make itself comfortable and lastly the hypothesis, this should answer to your question or your problem. So my hypothesis is that dogs are one of the animals that are those difficult to find a place to sleep and some of that kind of animals are cat, before they lay on their bed, they have to circle to find a spot that could fit its body to be more comfortable when the dog sleep
Well, MOST pathogenic bacteria is harmless, but SOME could cause death, like tuberculosis, but just in case you would want to mark the answer as, "True".
I hope I helped! =D