I believe the order is...
Producers
Primary Consumers
Secondary Consumers
Tertiary Consumers
I hope this helps!
Answer: The answer is the last option, Backflow of blood through a defective valve.
Explanation: Hypotension causes high blood pressure, and the other two options are not related to heart murmurs. A hear murmur is when the blood isn't flowing in the right direction causing the hear to beat irregularaly.
hello so the answer is suppose to be 20 words but idk but its a or b or d or c one of those :)
rusting of iron is a chemical change because it is two substances reacting together to make a new substance. When iron rusts, iron molecules react with oxygen molecules to make a compound called iron oxide. Rusting would only be a physical change if iron molecules remained pure iron throughout the process.
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