Question

The circulatory system is an organ system that is composed of __________.
a. cells, organs, and organisms
b. cells, tissue, and organisms
c. tissue, organs, and organisms
d. cells, tissue, and organs

Answer 1

I feel like it would be A or D, but then again I'm not the best at this stuff. What do you think @kaylaprincess

Answer 2

My educated guess would be A,
because of the below paragraphs on the circulatory system.
* It notes that the Lymphatic system, is composed of vessels that collect lymph from body tissues. -> Lead part of my answer to A.



circulatory system, group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as composed of two parts: the systemic circulation, which serves the body as a whole except for the lungs, and the pulmonary circulation, which carries the blood to and from the lungs. The organs of circulatory system consist of vessels that carry the blood and a muscular pump, the heart, that drives the blood.

Of the vessels, the arteries carry blood away from the heart; the main arterial vessel, the aorta, branches into smaller arteries, which in turn branch repeatedly into still smaller vessels and reach all parts of the body. Within the body tissues, the vessels are microscopic capillaries through which gas and nutrient exchange occurs (see respiration). Blood leaving the tissue capillaries enters converging vessels, the veins, to return to the heart and lungs. The human heart is a four-chambered organ with a dividing wall, or septum, that separates it into a right heart for pumping blood from the returning veins into the lungs and a left heart for pumping blood from the lungs to the body via the aorta.

An auxiliary system, the lymphatic system, is composed of vessels that collect lymph from body tissues. Carried to converging vessels of increasing size, the lymph enters the thoracic duct and is emptied into a large vein near the heart.

Read more: circulatory system: Introduction | Infoplease.com http://www.infoplease.com/encyclopedia/science/circulatory-system.html#ixzz3AxF6UIRV

Answer 3

Ya thats what I thought :) @kaylaprincess

Answer 4

An organ system is composed of organs, tissues and cells. Different organ system make up an organism.

Answer 5

So the correct option is D
@kaylaprincess @hannahmarre @TinkerbellGirl

Answer 6

So I was right and wrong lol @Abhisar

Answer 7

:)

Answer 8

Thank you so much !!!!!!

Answer 9

I see now,

Answer 10

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