The correct answer is cells.
Some organisms are single-celled, and are only made up of once cell.
But most complex organisms are made up of billions and billions of cells.
All living creatures are composed of at least one cell.
Answer:
One of the most colorful images taken of the Moon, this NASA compilation shows shades of green and brown in addition to gray. Many Moon photos are actually color images! Unfortunately, unlike the planets, the Moon's surface has no brightly colored areas. Most of its color is a mix of dark browns, grays, or black.
Is it multiple choice?
Both the Amy and Rosalie are correct.
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What is Circulatory system?</h3>
The heart, blood vessels, and blood itself circulate throughout the entire body of a human or other vertebrate through the blood circulatory system.
The blood contains of the red and white blood cells along with plasma and other substitutes of blood.
Also the blood has the function to supply the nutrients to the cells of the body along with transporting carbon dioxide to the alveoli of the lungs.
The circulatory system is a closed pack system with the involvement of various organs like the heart the lungs and plays a crucial role in maintaining the homeostasis of the body.
Learn more about circulatory system with the given link:
brainly.com/question/988206
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