An economic condition that fits that description is called scarcity where many have to fight for little resources, jobs ext. <span />
Answer:
Lumen corresponds to the central opening of a vessel (option d).
Explanation:
From the biological point of view, lumen is the internal space of any structure or tubular organ, whose purpose is the conduction of substances through it.
In the case of blood vessels, the lumen is a central space covered by a simple epithelium, called the endothelium, which ensures the passage of blood in a fluid form.
The other options do not correspond to the answer:
<em> a. </em><u><em>Vessel that empties into the right atrium</em></u><em> is the vena cava</em>
<em> b. </em><u><em>Fibrous sac around the heart </em></u><em>is the pericardium.
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<em> c. </em><u><em>Structure that keeps fluid moving forward</em></u><em>, it is a blood vessel.
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<em> e. </em><u><em>Lower, pointed region of the heart</em></u><em>, corresponds to the cardiac apex.</em>
Answer: 1 Gram is equal to 0.001 kilogram (kg). To convert grams to kilograms, multiply the gram value by 0.001 or divide by 1000. For example, to find out how many kilogram is 500 grams, divide 500 by 1000, that makes 0.5 kilogram is equal to 500 grams.
Explanation: Yw
Because there are fruits, vegetables, meats, etc that also have these minerals
