The five levels of organization in a multicellular organism are cells, organs, tissues, organ systems and organisms. The caliber of intricacy and functionality increases going from cells to organisms.
<em>Option </em><em>4</em><em> </em><em>(</em><em> </em><em>avoid </em><em>bending </em><em>)</em><em> </em>is your answer...
<em>Hope </em><em>it </em><em>helps </em><em>you,</em><em> </em><em>gentle </em><em>lady</em><em>,</em><em> </em><em>Pls </em><em>mark </em><em>brainliest</em>
Answer:
The cycle of fluid intake and loss continues on a daily basis. <em>Fluid intake is accomplished by drinking fluids and eating foods.</em> <em>Fluid losses occur through urination, perspiration, and respiration.</em>
The system that prepares food for absorbtion into the bloodstream is the digestive food. It makes sure the food in the stomach is broken down.
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>
