In plants, there is a conducting tissue that is located in the veins. Inside, there are xylem cells that conduct water and minerals upward from roots to leaves and phloem that conducts food. Plants have only water solutions flowing through the tubing. Animals can have one of two kinds of circulatory systems: open or closed. In animals, each blood vessel in the network is responsible for transporting nutrients and oxygen to cells and for removing wastes and carbon dioxide from cells.
Kinins are always present in an individual's blood. however, in the absence of infection, it is in an inactive form. The kinins are polypeptides that as blood components generate various mediators and many<span> cardinal manifestations of </span>inflammation.
Let's read the chemical equation for cellular respiration. The equation shows that cells use<span> six molecules of </span>oxygen<span> (6O</span>2<span>) to </span>break down<span> one molecule of </span>glucose(C6H12O6<span>). The arrow shows that when the sugar is broken </span>down<span> something else is produced. Energy, water, and carbon dioxide are produced.</span>
Answer:
Classification is important because it helps scientists to clearly identify species, study and observe them, and organize concentrated conservation efforts.
Explanation:
Answer: C
Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.
It could be B as well but, I believe it's C