Topics: Skel, Musc, Nerv, Circ, Resp Quiz
The nucleus of a single-celled organism becomes damaged. In a complex organism, this would be similar to which organ system becoming damaged?
A. nervous
B. excretory
C. cardiovascular
D. respiratory
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Which body systems work together to send oxygen throughout the body?
A. respiratory and excretory
B. integumentary and nervous
C. respiratory and circulatory
D. nervous and muscular