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Answer:
(3rd option)The likelihood that a certain event will occur
Explanation:
- Probability is the likelihood that an event will occur and is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
- Flipping a coin is a great example of showing probability you can flip the coin knowing that there are only going to be two possible outcomes. the coin could land on heads or tails.
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Crossing over. Parts of sister chromatids will sometimes switch places with the parallel part, resulting in a completely unique DNA sequence.
B. Positive feedback, it decreases body temperature.
Miller Urey experiment mimics the environment we had for earth billion of years ago. They put in inorganic molecules and came out with organic molecules. Other scientist thought that they messed up their experiment, but once other scientists recreated and tested. They saw that Miller and Urey were correct. And that helped them see that the origin of life can come from simple cells.