Before the 1700s some people believed that life came from mud or decaying meat what is this theory called

This theory is called spontaneous generation: before the 1700 people believed that life could be generated spontaneously from mud or decaying meat, because they observed that, after some time, flies appeared from decay meat, leading them to the conclusion that life could be spontaneously generated.

This theory was refused from both Louis Pasteur and Francesco Redi: they both demonstrated, with similar experiments, that the spontaneous generation theory was false.

The experiment is quite simple, and it’s based on two pieces of meat: one is left exposed to the air, one is covered to prevent exposure. After some time, from the piece of meat exposed some flies started to appear, while the covered piece of meat was free of flies.

This result proved that the theory of spontaneous generation was false. 

The experiment is based on a principle called “manipulated variable”: a single variable is the object of a controlled experiment, in which two test is conducted at the same time, in order to prove that the difference of results in the two tests is caused by the only different variable (in this case, the variable is the exposure to the air and the hypothesis is that the flies appeared in the decaying meat not because of spontaneous generation but because larvas where carrying out by air).  

this is an outline for the decisions that frankie is going to make

opportunity cost

willingness to buy

price or quality

of course, there could be many economic strategies that should be considered important while making decision. opportunity cost is the foremost significant factor while considering any economic option. when you buy something, you should know how much you are forgoing for this product. indeed, you could buy something different with this measure if you changed your mind. willingness to buy shows how much surplus you are earning while making a decision. it is important because it shows you buy what you want or you buy because you have only limited amount of money. the price or quality can be considered as a general economic option that we are applying while buying something. when you buy something, price or quality could be one of the options. indeed, they define the characteristics of the product.    

mark brainliest!

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.