In 3-5 complete sentences, compare and contrast the three ways that waves change direction. (3-5 sentences)

Express the following number in scientific notation. 0.026890 =

Enzymes affect the reactions in living cells by changing the

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )