Answer:
The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells. C. The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
People work together, on the side of the planet that wasn't damaged, you could grow a lot more plants and stop cutting trees. This could repair the damage over a few hundred years, maybe more.
An economic terminology which describes the option of mowing lawns is opportunity cost.
<h3>What is an
opportunity cost?</h3>
An opportunity cost is also referred to as alternative forgone and it can be defined as the value, profit or benefits that are given up by an individual or business firm, in order to choose or acquire something deemed most significant at the time.
In this context, we can infer and logically deduce that an economic terminology which describes the option of mowing lawns over animal rescue is an opportunity cost.
Read more on opportunity cost here: brainly.com/question/8846809
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The answer is A because i’m really smart and i know that’s the right answer