Biology, 07.11.2020 07:40 brianna5626

(please help me ) The heart and blood vessels together comprise a/an

A. tissue.
B. organ.
C. organ system.
D. organism.

Answers: 1

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(please help me ) The heart and blood vessels together comprise a/an

A. tissue.
B...

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(please help me ) The heart and blood vessels together comprise a/an A. tissue. B. organ. C. organ system. D. organism.

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Other questions on the subject: Biology

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(please help me ) The heart and blood vessels together comprise a/an

A. tissue.
B. organ.
C. organ system.
D. organism.