The salt water consists mostly of the following substances: dissolved salts (predominantly sodium (Na+ ) and chloride (Cl− ) ions.<span>The other most </span>abundant<span> ions of </span>seawater<span> are</span> sulfate (SO24−), magnesium (Mg<span>2+</span>), calcium (Ca<span>2+</span>), and potassium (K+<span>).</span>
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when the northern hemisphete is tilted toward the sun
B. The hypothalamus secretes the gonadotropin releasing hormone (GnRH), which stimulates the pituitary gland to secrete luteinizing hormone (LH). This stimulates the testes to secrete testosterone.
It receives blood from the whole body. Blood from the lungs enters the heart through the pulmonary vein into the left atrium. ... - Has ventricles that has thicker walls thus more muscular than auricles generating higher pressure to pump blood over long distances.