Answer:
A pheochromocytoma is a tumor in the adrenal gland. It causes the gland to make too much of the hormones epinephrine and norepinephrine.
Explanation:
Tundra - The coldest land biome is found near Earths north and south poles. It has no trees but has low, slow growing vegetation with permafrost below the topsoil. The tundra usually receives less than 25 cm of precipitation annually.
Chromatin hope this helped
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https://quizlet.com/20568601/blood-types-flash-cards/
A water molecule, because of its shape, is a polar molecule. That is, it has one side that is positively charged and one side that is negatively charged. The molecule is made up of two hydrogen atoms and one oxygen atom. The bonds between the atoms are called covalent bonds because the atoms share electrons. The hydrogen atoms have one electron each.
Because they share those electrons with the oxygen atom, the electrons tend to stay close to the oxygen atom and the outside of the hydrogen atom tends to be positively charged. The oxygen atom has eight electrons. Most of those tend to stay away from the hydrogen atoms and cause the outside of the oxygen atom to have a negative charge.
<span>When two water molecules get close together, the polar forces work to draw the molecules together. The oxygen atom of one water molecule will bond with several hydrogen atoms of other water molecules. These bonds are called hydrogen bonds.</span>