Circulatory system pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over. Your circulatory system is critical to healthy organs, muscles and tissues.
I believe it is A. Primary succession starts with plants and rocks.
During the process of biological magnification , the concentration of pollutants, such as DDT or mercury, is multiplied as it passes up a food chain.
What Paul and Nancy should do to ensure a fair comparison between all the hives is to d<span>ocument the number of bees as compared to the amount of honey per hive.
This is the only fair comparison, because they will know approximately how much each of the groups produced compared to the number of bees.
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Answer:
D. Library Book
Explanation:
This is because library books can not be recycled. Sorry if my answer is wrong, just trying to help.
