Answer: "natural selection" .
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Blood clots form when platelets and plasma proteins thicken to form a sort of solid mass. They can form from an injury, blood flowing slowly through your system, or even for no obvious reason.
An example of selective breeding is breeding cattle to produce better meat.
Answer: 500 velocity
Explanation: Wave velocity (m/s) =Wavelength (m) * Frequency (Hz) Example calculation. I found this by using calculation of wavelength times frequency and the answer will be your velocity.
Answer:
Well the people who are my favorites are Sapnap, Dream, GeorgeNotFound, Skeppy, BBH, and TechnoBlade.